Agilent 34980A
Multifunction
Switch/Measure Unit
Data Sheet
Challenge the Boundaries of Test
Agilent Modular Products
If you use automated test equipment for
design validation or manufacturing, you now
have a cost-effective solution for many test
system applications. The 34980A multifunc-
tion switch/measure unit provides func-
tionality that is easy to set up and use, with
a fast startup time. The 34980A helps you
lower your cost of test and accelerate your
test-system integration and development.
The 34980A handles system switching
up
to 26.5 GHz and provides basic
measure-
ments and system control. It also offers
DMM measurements, counter/ total-
izer functionality, digital I/O with pattern
capabilities, and
analog outputs with basic
waveforms—
all in one low-cost, compact
box. And with its standard connectors and
software drivers, computer-standard I/O,
and Web browser interface, the 34980A
easily integrates into electronic functional
test and data acquisition systems.
Flexible switching, measure-
ments, and system control
The 34980A accommodates up to 8 plug-in
modules to give you the flexibility you need.
Choose from 21 different modules to define
your own configuration. You can buy what
you need now and add to it or reconfigure it
as your requirements change.
Whether you are measuring temperature,
AC or DC voltage, resistance, frequency,
current, or custom measurements, the
34980A offers the functionality you need
in a single box. Switch in different measure-
ments with high-performance signal switch-
ing up to 300V with no external signal
conditioning required. Choose between
different switch types and topologies with
frequency ranges from DC to 26.5 GHz. The
34980A offers high-density multiplexers for
scanning multiple channels, matrices for
connecting multiple points at one time, and
general purpose switches for simple control
and high power needs.
Use the 34980A to route individual signals
or monitor multiple signals over a specified
period of time—monitor a single channel or
multiple channels, set alarms, and identify
irregularities.
The 34980A offers flexible choices for
system control. You can control external
devices such as microwave switches,
attenuators, solenoids, and power relays. Or
use the digital inputs to sense limit-switch
and digital-bus status.
Optimized for test systems
The 34980A has the performance you need
for medium- to high-density switching/
measurement applications such as design
verification, functional test and data acqui-
sition. Your signals are switched to the right
measurement device without compromising
signal integrity. Switch your signals to the
optional internal DMM and achieve optimal
throughput on switch closure time. Or, if
you prefer, you can easily connect to exter-
nal instruments such as DMMs, scopes,
power supplies, and more. What’s more,
with the built-in Ethernet interface, you can
control the 34980A and collect data from
anywhere on the network. For a complete
modular solution, use the 34980A together
with PXI modular products when more
capability is required.
The rugged instrument comes with
a variety of system-ready features:
•Webbrowserinterfaceshows
settings at a glance and provides remote
access and control
•Self-guidingfrontpaneltoconfigure,troubleshoot or view data
•LowEMIandefficientsystem
cooling
•Heavy-dutycablingandconnectionoptions
•Flexiblerackmountingoptions•Relaycountershelppredictend-
of-life
•In-rackcalibrationforreducedmainte-
nance time
•DMMmeasurementaccuraciesincludethe switch for simple
calculations
Make system connections easily
and quickly with simple, reliable
connection options:
•Built-inEthernet,USB2.0,
andGPIBconnectivity•Low-cost,standard50-or78-pinDsubconnectors and cables
•Detachableterminalblockswithstrainrelief
•MassinterconnectsolutionsIn addition, the 34980A comes with Agilent
IOLibrariesSuite.Quicklyestablishanerror-free connection between your PC
and instruments—regardless of vendor.
TheIOLibrariesproviderobustinstrumentcontrol and work with the software devel-
opment environment you choose.
2
High-performance switch/measure unit provides a
low-cost, highly flexible measurement platform
Easier signal routing with four
2-wire internal analog buses. You can route
your measurements directly to the inter-
nal DMM, or you can connect to external
instruments through the analog bus con-
nector on the rear of the mainframe. And
since you have four 2-wire buses, you can
dedicate one bus for use with the internal
DMM and use the other three buses for
module extensions or additional signal rout-
ing between modules, reducing your wiring
needs.
You can define up to 500 switch sequences
to control complex signal routing and
the order of switch closures. Assign a
sequence, give it a name and then execute
it with the name you created.
Switch sequences are downloaded and
stored in the instrument for ease of pro-
gramming and increased throughput.
External trigger capabilities make it easy for
you to time and synchronize measurements
and other events. This can help you deter-
mine when to begin or end an acquisition.
Measurements you can trust
Get proven performance from Agilent
instruments, with the resolution, repeat-
ability, speed, and accuracy you’ve come
to expect.
The 34980A offers built-in signal condition-
ing and modular flexibility. When you use it
with the internal DMM, you can configure
each channel independently for the mea-
surements you choose. It includes a variety
of features that give you confidence in your
measurements:
•6½digitsofresolutionwith.004%
of accuracy with DC voltage
measurements
•Alarmsperchannel—highlimit,
low limit, or both
•Mathfunctions—useMx+Bfor
custom linear conversions and
converting raw inputs •Built-inthermocouplereference
for temperature measurements (34921T)
•Time-stampedreadings•AddmoreformulaswithBenchLinkDataLoggerSoftwareThe integrated DMM is mounted inside
the mainframe and does not consume
any of the eight user-available slots. You
can access the DMM through any switch
module that connects to the analog bus,
or directly from the analog bus connector
on the rear of the mainframe. The internal
DMM gives you the flexibility to measure
11 types of inputs:
•Temperaturewiththermocouples,RTDs,or thermistors (with 34921A)
•DCandACvoltage•2-and4-wireresistance•Frequencyandperiod•DCandACcurrentYou can control the DMM directly, or
configure it to work in conjunction with
the switches. Each switch channel can be
configured independently for measurement
functions, scale factors and alarm limits.
Advanced measurement features such as
offset compensation, variable integration
time, and delay are also selectable on a
per-channel basis.
The DMM inputs are shielded and opti-
cally isolated from the 34980A’s earth-
referenced circuitry and computer interface,
and as a result, you get up to 300 V of input
isolation. This is important for reducing
ground-loops and common-mode voltage
errors associated with long wiring runs and
floating sources.
Simple DMM calibration is
accomplished with just the analog bus con-
nection on the rear panel of the mainframe.
You don’t need to remove the mainframe
from the rack or dedicate a channel for
calibration.
Modules provide flexible system
stimulus and control
System control—with analog outputs,
open-collector digital outputs, clock genera-
tion, and isolated Form-C relays for control-
ling external devices. Additionally, with the
microwave switch/attenuator driver, high-
frequency switches and attenuators can be
efficiently controlled external to the 34980A
mainframe.
Analog sources—output either voltage or
current. You can configure the 4-channel
isolated D/A converter as a point-to-point
arbitrary waveform generator that lets you
define up to 500,000 points per waveform.
Digital patterns—send or receive digital
data from your device under test. With on-
board memory you can output communica-
tion protocols and bit streams or monitor
digital input patterns and interrupt when a
user-defined pattern is detected.
3
4
Standard interfaces take the has-
sle out of connecting to your PC
Standard Ethernet, USB and GPIB inter-
faces are included in every mainframe. Use
one of the built-in interfaces that is already
available in your computer, or if you prefer,
GPIBisstillavailable.•USBoffersthequickestandeasiestcon-
nection scheme—it’s perfect for small
systems and bench connections.
•Ethernetoffershigh-speedconnectionsthat allow for remote access and control.
Choose a local area network to filter out
unwantedLANtrafficandspeeduptheI/O throughput. Or take advantage of the
remote capabilities and distribute your
tests worldwide. Use the graphical Web
browser to monitor, troubleshoot, or
debug your application remotely.
•GPIBhasmanyyearsofprovenreliabilityfor instrument communication and can
beusedinexistingGPIBbasedtestsys-
tems.
Remote access and control
The built-in Web browser interface provides
remote access and control of the instru-
ment via a Java-enabled browser such as
Internet Explorer. Using the Web interface,
you can set up, troubleshoot, and maintain
your system remotely.
•Viewandmodifyinstrumentsetup•Open,close,ormonitorswitches•SendSCPIcommands•Defineandexecuteswitchscansandswitch sequences
•Viewerrorqueue•Getstatusreportsonrelaycounts,firm-
ware revisions, and more
Additionally, since the Web interface is
built into the instrument, you can access it
on any operating system that supports the
Web browser without
having to install any special software.
PasswordprotectionandLANlockoutare also provided to limit access.The Web
interface makes it easy to set up, trouble-
shoot and maintain your system remotely.
Works with your choice of software so
you can save time and preserve your soft-
ware and hardware investments. Program
directlywithSCPI,oruseIVIorLabVIEWsoftware drivers that provide compatibility
with the most popular development envi-
ronments and tools:
•AgilentVEEPro,AgilentT&MToolkit(requires Microsoft® Visual Studio®.
NET)•NationalInstrumentsLabVIEW,LabWindows/CVI,TestStand,andSwitch Executive
•MicrosoftVisualStudio.NET,C/C++andVisualBasic6Figure 1. The Web interface makes it easy to set up, troubleshoot and maintain your
system remotely
5
Free BenchLink Data Logger Software
to Simplify data logging
TheBenchLinkDataLoggersoftwareforthe34980A provides a convenient way to collect
and analyze your data.
This is a Windows® -based application that
uses a familiar spreadsheet environment to
define measurement data to be collected.
The tab-based format makes it easy to set
up and initiate scans. Simply identify the
measurements you want to acquire, initi-
ate the process and see the data displayed
real-time. The rich set of colorful graphics
provides many options for analyzing and dis-
playing your data. You can specify multiple
channels per graph, or send collected data
to multiple graphs. Use strip charts with
markers and alarm indication, or histograms
with statistics. And of course you can use
BenchLinkDataLoggertoeasilymovedatato other applications for further analysis,
or for inclusion in your presentations and
reports.
Figure 3. 34832A BenchLink Data Logger Pro adds limit checking and decision making
Also Available
TheBenchLinkDataLogger
Pro Software adds limit checking
and decision making for more
complex applications. Simply
identify the measurements you
want to acquire, define limits
and actions to be preformed,
and then initiate the process.
Your data is then collocated,
evaluated and acted on
real-time.
Figure 2. 34826A BenchLink Data Logger Software for high speed data logging with no
programming
Event •ControlInstruments•SendNotification(s)•StopScan•ControlInstruments•SendNotification(s)•StopScan•ControlInstruments•SendNotification(s)•StopScanEvent
Events
Events
Events
Scan List A
(Base)
Scan List B
Scan List C
Event
Start
6
Intuitive front panel with self-guiding menus
Set up scan lists
See results on bright,
multiline display
Scan multiple channels,
close specified channel list,
or monitor results on a single channel
Use keypad to enter channel number or knob to scroll
Store up to 500,000 readings with timestamp
6
1⁄ 2 digit DMM measurements
with 11 functions
Set I/O,
date and
other system
features
Store and
recall
instrument
setups
Access to four
2-wire analog buses
External trigger to synchronize events
8-slots connect to optional internal DMM
Built-in Ethernet,
USB 2.0,
and GPIB
interfaces
Optional terminal blocks
Industry standard DSub cables
21 plug-in modules to choose from
Standard DSub connector kits
Configure measurements, manage
sequences, view errors and alarms
Power and flexibility to get your job done
7Mix and match 34980A modules to
create your own custom configuration
The 34980A mainframe holds up to eight plug-in modules. Mix and match them to create a custom system to meet your switching and
system control needs. You can easily add or replace modules as your needs change.
Table 1. 34980A modules at a glance
Max Switch/Carry BW Scan Thermal
Module Description volts current (MHz) ch/sec offset Comments
Multiplexer modules
34921A 40-channel armature multiplexer w/low ± 300 V 1A/2A 45 MHz 100 < 3 uV Temperature reference
thermal offset 4 current channels
Config as 2- or 4-wire
34922A70-channelarmaturemultiplexer±300V1A/2A25MHz100<3uVConfigas2-or4-wire34923A 40/80-channel reed multiplexer ± 150 V 0.5A/1.5A 45 MHz 500 < 50 uV Config as 1-, 2- or 4-wire
34924A70-channelreedmultiplexer±150V0.5A/1.5A25MHz500<50uVConfigas2-or4-wire34925A 40/80-channel optically isolated ± 80 V 0.02A 1 MHz 1000 < 3 uV Config as 1-, 2- or 4-wire
FET multiplexer
Matrix modules
34931ADual4x8armaturematrix±300V1A/2A30MHz100<3uVBackplaneexpandable34932ADual4x16armaturematrix±300V1A/2A30MHz100<3uVBackplaneexpandable34933ADual/Quad4x8reedmatrix±150V0.5A/1.5A30MHz500<50uVBackplaneexpandable
Config as 1- or 2-wire
34934AQuad4x32reedmatrix+/-100V0.5A/0.5A20MHz500<50uVRowexpansionkit.Config as 1- or 2-wire
General-purpose modules
34937A28-channelFormCand+/-300V1A/2A10MHzN/A<3uV
4-channelFormA+/-250VAC5A<3uV34938A20-channel5-ampFormA+/-250VAC5A/8A1MHzN/A<3uV34939A64-channelsFormA+/-100V1A/2A10MHzN/A<3uVRF and microwave modules
Insertion Freq Input
Module Description loss Isolation range VSWR impedence Comments
34941AQuad1x450ohm3GHzRFmultiplexer0.6dB>58dB3GHz<1.2550Ω@1GHz34942AQuad1x475ohm1.5GHzRFmultiplexer0.6dB>60dB1.5GHz<1.3575Ω@1GHz34945A/ Microwave switch/attenuator driver Can drive up to 64 external switch coils; 32 SPDT switches,8 multiport switches,
34945EXT 8 attenuators, or your own combination. Expand with additional 34945EXTs.
34946ADual1x2SPDTterminated<0.42dB>85dB4GHzor<1.1550Ω@4GHz
microwaveswitch<0.69dB>67dB20GHz<1.30@20GHz
<0.8dB>60dB26.5GHz<1.6@26.5GHz34947ATriple1x2SPDTunterminated<0.42dB>85dB4GHzor<1.1550Ω@4GHz
microwaveswitch<0.69dB>67dB20GHz<1.30@20GHz
<0.8dB>60dB26.5GHz<1.6@26.5GHzSystem control modules Description
34950A 64-bit digital I/O with memory Eight 8-bit digital I/O channels with programmable polarity, thresholds up to 5 V,
and counter with handshaking protocols and pattern memory. Two 10 MHz frequency counter and
programmable clock output to 20 MHz.
34951A 4-channel isolated D/A converter Output DC voltage up to ± 16 V or DC current up to ± 20 mA.
with waveform memory Output waveforms with a 200 kHz update rate and 16 bits of resolution.
Use on-board memory to create point-to-point waveforms with more than 500,000 points.
34952A Multifunction module with 32-bit DIO, Four 8-bit digital I/O channels, two ± 12-V analog outputs, and a 100 kHz gated totalizer.
2-ch D/A and totalizer
34959ABreadboardmoduleCreateyourowncustomdesignswithaccesstothe+12Vand+5Vsupplies,
16 GPIO ports and 28 relay drive lines.
8
34980A multiplexer
switch modules
The 34980A multiplexer modules can be
used to connect one of many different
points to a single point. You can connect
to an external instrument, or scan mul-
tiple analog signals to the internal DMM.
Choose from the following features:
•1-wire,2-wire,or4-wire
configurations
•Highvoltage—upto300V,1A•Highdensity—702-wireor
80 1-wire channels
•Scanupto1000ch/secwiththe34925A
•Bandwidthsupto45MHz•Temperaturemeasurementswithbuilt-in thermocouple reference junction
(34921T)
•ACorDCcurrentmeasurementswithoutexternal shunts
•Flexibleconnectionsviastandard
50-or78-pinDsubcablesordetachableterminal blocks
Figure 4. 34921A 40-channel armature multiplexer with low thermal offset (bank 2)
Voltage Current Freq/ Ω 2-Wire Ω 4-Wire Thermo- RTD RTD Thermistor
AC/DC AC/DC Period couple 2-Wire 4-Wire
34921A Armature Multiplexer Yes Yes Yes Yes Yes Yes Yes Yes Yes
34922AArmatureMultiplexerYesNoYesYesYesYesYesYesYes34923AReedMultiplexer(2-wire)YesNoYesYesYesYesYesYesYes34923AReedMultiplexer(1-wire)YesNoYesYesNoYesYesNoYes34924AReedMultiplexerYesNoYesYesYesYesYesYesYes34925AFETMultiplexer(2-wire)YesNoYesYesYesYesNoYesNo34925AFETMultiplexer(1-wire)YesNoYesYesNoYesNoNoNoNote: See User’s Guide for additional information.
Table 2. Multiplexer measurement functions
026
027
028
029
030
ABus2
DMM
(SENS)
ABus3 ABus4
931
923 924 922 921
DMM
(MEAS)
L
021
022
023
024
025
H
L
031
032
033
034
035
036
037
038
039
040
L
H
L
H
L
Current
Fuse
Fuse
Fuse
Fuse
042
043
041
L H
L H
L H
L H
L H
L H L H
L H
L
L
L
L
044
L H
H
COM 2
Bank 2
Current
Analog Buses
I
I
I
I
I ABus1
9
Multiple multiplexers can connect
to the built-in analog buses, allowing you
to scan up to 560 2-wire channels or 640
1-wire channels in a single mainframe. The
34921A also offers 4 channels for directly
measuring current. Or if you need more cur-
rent channels, shunts can be added to the
terminal block for easy current measure-
ments.
The multiplexer modules feature break-
before-make connections to ensure that no
two signals are connected to each other
during a scan. Or, if you prefer, you can
control switching manually to create your
own switch configuration. All the multiplex-
er switches have a relay counter to help
predict when relays need to be replaced.
Note:The34923Aand34924Ahave100ohm input protection resistors that limit
current and protect the reed relays.
001
002
003
004
005
HD LD
COM 1
Bank 1
HD LD
HD LD
HD LD
HD
LD 006
007
008
009
000
HD LD
HD
LD 011
012
013
014
015
HD LD
HD
LD 016
017
018
019
020
HD LD
HD
LD
914
HD LD
HD LD
913
HD LD
HD LD
912
HD LD
HD LD
911
ABus3 ABus4
ABus1
DMM
(MEAS)
ABus2
DMM
(SENS)
Analog buses
100 Ω
100 Ω
100 Ω
100 Ω
100
Ω100 Ω
Figure 6. 34925A 40/80-channel optically isolated FET mux (shown in 1-wire mode bank 2)
Figure 5. 34923A 40-channel reed multiplexer (bank 1 shown)
10
Table 3. Multiplexer selection table—specifications and characteristics
34921A 34922A 34923A 34924A 34925A
Channels/configurations402-wire702-wire801-wire702-wire801-wire
20 4-wire 35 4-wire 40 2-wire 35 4-wire 40 2-wire
4-current 20 4-wire 20 4-wire
1.5 A Fused
Switch type
Armature
ArmatureReedReedOptically
latching
latching isolated FET
Input characteristics (per channel)
Max volts ± 300 V [1] ± 300 V [1] ± 150 V peak [2] ± 150 V peak [2] ± 80 V peak [2]
Maxcurrent(DC,ACRMS)
Switch current 1 A 1 A 0.5 A [5]/ 0.05 A [11] 0.5 A [5]/ 0.05 A [11] 0.02 A[8]
Carry current 2 A 2 A 1.5 A [5]/ 0.05 A [11] 1.5 A [5]/ 0.05 A [11]
Power (W, VA) [6] 60 W 60 W 10 W 10 W 1.6 W
Volt-Hertz limit 108 108 108 108 107Initial closed channel res [3][12]<1.5Ω<1.5Ω< 1.5 Ω [5]/200 Ω[11] < 1.5 Ω[5]/200 Ω[11]<700Ω
nominal nominal
General specifications
Offset voltage [3] < 3 uV < 3 uV < 50 uV < 50 uV < 3 uV
< 100 uV 1-wire
DCIsolation(ch-ch,ch-earth)>10GΩ>10GΩ>10GΩ>10GΩ>10GΩLeakagecurrent[3]N/AN/AN/AN/A20nA[9]
T/C cold junction accuracy [3, 10]<1°CN/AN/AN/AN/AAC characteristics
Bandwidthatterminalblock [4] 45 MHz 25 MHz 45 MHz[5]/4 MHz 25 MHz[5]/4 MHz[11] 1 MHz
10 MHz 1-wire
Crosstalk at terminal block (ch-ch) [4]
300kHz-75dB-75dB-75dB-75dBNotrecommendedforRFsignalswitching1MHz-75dB-75dB-75dB-70dB
20MHz-50dB-50dB-50dB-45dB
45MHz-40dB-40dBCapacitance at terminal block
HI-LO150pF250pF130pF200pF100pF
LO–earth150pF200pF120pF170pF300pF(600pF1-wire)[1] DCorACRMSvoltage,channel-to-channelorchannel-to-earth[2] Peak voltage, channel-to-channel or channel-to-earth
[3] Into analog bus. System errors are included in the internal DMM measurement accuracy specifications
[4]50Ωsource,50Ωload,differentialmeasurementsverifiedwith4-portnetworkanalyzer(Sdd21)[5]Withinputresistorsbypassed.Bypassingresistorswillreducelifetimeofrelays.Seetheratedloadrelaylifecharacteristics.[6]Limitedto6Wofchannelresistancepowerlosspermodule[7]Speedsarefor2-wireohmsorDCV,41
/
2 digits, delay 0, display off, autozero off, and within bank
[8] DC or peak AC current
[9] Ambient temperature < 30°C
[10] Includes 0.5°C temperature reference sensor and 0.5°C terminal block isothermal gradient error, measured under worst case loading of the mainframe; see User’s
Guide for information on supported external reference sensors
[11]Withinputprotectionresistors:2x100Ω±5%;0.5W;TC=±200ppm/°C.Theseriesresistanceofthe34923/24/25limitstheuseofthe100Ωrange.[12]Channelresistanceistypically<1.5Ωbutcangoashighas50Ωwhenachannelisusedinmeasurementapplicationswith<10mAloadcurrent.Increasedrelay channel resistance for measurements with load currents below 10 mA can occur on cards that have been out of service or following relay inactivity for peri-
ods of greater than 1 week. Switching relays for 2K cycles prior to use may reduce the variation in channel resistance. Applies to the 34921A and 34922A. Agilent
recommendstheuseof4-wireOhmsforresistancemeasurements.Forhighaccuracyvoltagemeasurements,selecttheDMMinputresistancesettingof>10Gohms to minimize the impact of relay contact resistance.
11
Table 3. Multiplexer selection table—specifications and characteristics—continued
34921A 34922A 34923A 34924A 34925A
General characteristics
Relaylife,typical
Noload100M100M1000M1000MUnlimitedwithinFET banks
10 V, 100 ma 10 M 10 M 10 M 10 M Unlimited within FET
banks
Ratedload100k100k10k10kUnlimitedwithinFET
banks
Scanning speeds [7] 100 ch/sec 100 ch/sec 500 ch/sec 500 ch/sec 1000 ch/sec
Open/ close time, typical 4 ms/4 ms 4 ms/4 ms 0.5 ms/0.5 ms 0.5 ms/0.5 ms 0.25 ms/0.25 ms
Analog bus backplane connection Yes Yes Yes Yes Yes
[1] DCorACRMSvoltage,channel-to-channelorchannel-to-earth[2] Peak voltage, channel-to-channel or channel-to-earth
[3] Into analog bus. System errors are included in the internal DMM measurement accuracy specifications
[4]50Ωsource,50Ωload,differentialmeasurementsverifiedwith4-portnetworkanalyzer(Sdd21)[5]Withinputresistorsbypassed.Bypassingresistorswillreducelifetimeofrelays.Seetheratedloadrelaylifecharacteristics.[6]Limitedto6Wofchannelresistancepowerlosspermodule[7]Speedsarefor2-wireohmsorDCV,41
/
2 digits, delay 0, display off, autozero off, and within bank
[8] DC or peak AC current
[9] Ambient temperature < 30°C
[10] Includes 0.5°C temperature reference sensor and 0.5°C terminal block isothermal gradient error, measured under worst case loading of the mainframe; see User’s
Guide for information on supported external reference sensors
[11]Withinputprotectionresistors:2x100Ω±5%;0.5W;TC=±200ppm/°C.Theseriesresistanceofthe34923/24/25limitstheuseofthe100Ωrange.[12]Channelresistanceistypically<1.5Ωbutcangoashighas50Ωwhenachannelisusedinmeasurementapplicationswith<10mAloadcurrent.Increasedrelay channel resistance for measurements with load currents below 10 mA can occur on cards that have been out of service or following relay inactivity for peri-
ods of greater than 1 week. Switching relays for 2K cycles prior to use may reduce the variation in channel resistance. Applies to the 34921A and 34922A. Agilent
recommendstheuseof4-wireOhmsforresistancemeasurements.Forhighaccuracyvoltagemeasurements,selecttheDMMinputresistancesettingof>10Gohms to minimize the impact of relay contact resistance.
12
34980A matrix switch modules
The 34980A matrix modules are full cross-
point matrices that allow you to connect
any row to any column. This is a convenient
way to connect multiple test instruments to
multiple points on a device under test.
Choose from the following features:
•Latchingarmaturerelays—300V,1A•High-speedreedrelays—150V,0.5A•Configurabledual4x8,dual4x16orquad4x32 modules
•Single-wireconfiguration
(34933A or 34934A)
•Highdensitymatrixwithautomaticsurgeprotection and row disconnect for flex-
ible measurements (34934A)
•Analogbusexpandablerowsto
create larger matrices
(34931A, 32A, 33A)
•Connectionsviastandard50or78-pinDsub cables or detachable
terminal block
Each cross-point in the matrix switch has
two wires—a high and a low for the mea-
surement. Or, if you prefer, the 34933A and
34934A can be configured as a single-wire
matrix, increasing the number of channels.
The 34933A also has in-rush resistors on
each column for added protection.
The 34934A also has in-rush protection
resistors, but also has an automatic bypass
switch for flexibility in making low-level
measurements.Rowdisconnectswitchesalso reduce the capacitance loading when
combining modules to create larger matri-
cies.
Multiple matrix modules can be combined
through the analog bus or the row expan-
sion kit (34934A only) to create a larger
matrix. The matrix can then be connected to
the internal DMM for easy measurements.
Combine your matrix with a multiplexer
switch to achieve the desired switching
topology and get a lower-cost solution with
better specifications. All the matrix switches
include a relay counter to help predict
when relays need to be replaced. Use
the sequencing feature to easily change
between different cross-point setups.
L
H
L
H
L
H
L
H
921
L
H
922
L
H
923
L
H
924
L
H
LHLHLHLHLH ABus1 DMM
(MEAS)
ABus2 DMM
(SENS)
ABus3
ABus4
Figure 7. 34932A dual 4x16 armature matrix
Note: The 34933A and 34934A have 100
ohm input protection resistors to limit cur-
rent and protect the reed relays.
Figure 8. 34934A quad 4x32 matrix (1 of 4 matricies shown)
. . .
R 2
R 4
R 3
R 1
C 1 – C 32
13
Table 4. Matrix selection table—specifications and characteristics
34931A 34932A 34933A 34934A
Channels/configurations dual 4x8 dual 4x16 dual 4x8 quad 4x32
8x8 8x16 8x8 4x128
4x16 4x32 4x16 8x64
quad 4x8, 1-wire 16x32
SwitchtypeArmatureArmatureReedReed
latching latching non-latching non-latching
Input characteristics (per channel)
Max volts ± 300 V [1] ± 300 V [1] ± 150 V peak [2] ± 100 V peak
Maxcurrent(DC,ACRMS)
Switch current 1 A 1 A 0.5 A [5]/0.05 A [8] 0.5 A
Carry current 2 A 2 A 1.5 A [5]/0.05 A [8] 0.5 A
Power (W, VA) [2, 6] 60 W 60 W 10 W [7]10 W
Volt-Hertz limit 108 108 108 108
Initial closed channel res [3][9] <1.5Ω<1.5Ω< 1.5 Ω [5]/200 Ω [8] <1Ω/100Ω
nominal
General Specifications
Offset voltage [3] < 3 uV < 3 uV < 50 uV < 20 uV
< 100 uV 1-wire < 50 uV 1-wire
DCIsolation(ch-ch,ch-earth)>10GΩ>10GΩ>10GΩ10GΩAC characteristics
Bandwidthatterminalblock[4] 30 MHz 30 MHz 30 MHz[5]/4 MHz [8] 35 MHz 2-wire
2 MHz 1-wire 15 MHz 1-wire
Crosstalk at terminal block (ch-ch) [4]
300kHz-65dB-65dB-65dB-65dB
1MHz-55dB-55dB-55dB-55dB
20MHz-30dB-30dB-40dB-33dBCapacitance at terminal block
HI-LO50pF50pF80pF45pF
LO–earth80pF80pF75pF250pFGeneral characteristics
Relaylife,typical
Noload100M100M1000M
10 V, 100 mA 10 M 10 M 10 M 1000 M operations
Ratedload100k100k10kOpen/close time 4 ms/4 ms 4 ms/4 ms 0.5 ms/0.5 ms 0.35 ms/0.10 ms
AnalogbusbackplaneconnectionBank2Bank2Bank2No[1]DCorACRMSvoltage,channel-to-channelorchannel-to-earth[2] Peak voltage, channel-to-channel or channel-to-earth
[3] Into analog bus. System errors are included in the internal DMM
measurement accuracy specifications
[4]50Ωsource,50Ωload,differentialmeasurementsverified(Sdd21)[5]Withinputresistorsbypassed.Bypassingresistorswillreduce
lifetime of relays. See the rated load relay life characteristics.
[6]Limitedto6Wchannelresistancepowerlosspermodule[7]Powerrestrictionsallowonly20channelstobeclosedatonetime[8]ProtectionResistors:34933A-100Ω±5%;0.5W;TC=±200ppm/°C.34934A-100Ω±1%;0.25W;TC=±100ppm/°C. If this resistance is not bypassed in the low side source line of a 4-wire resistance measurement, the 100 Ω range is limited.
[9]Channelresistanceistypically<1.5Ωbutcangoashighas50Ωwhenachannelisusedinmeasurementapplicationswith< 10 mA load current. Increased relay channel resistance for measurements with load currents below 10 mA can occur on
cards that have been out of service or following relay inactivity for periods of greater than 1 week. Switching relays for
2K cycles prior to use may reduce the variation in channel resistance. Applies to the 34931A and 34932A. Agilent recom-
mends the use of 4-wire Ohms for resistance measurements. For high accuracy voltage measurements, select the DMM
inputresistancesettingof>10Gohmstominimizetheimpactofrelaycontactresistance.
14
34980A general-purpose
switch modules
The 34980A general-purpose switches can
be used to route signals or to control other
system devices. These switches are ideal
for device actuation and switching loads or
power supplies.
Choose from the following features:
•FormCchannelsupto1A,50W•FormAchannelsupto5A,150W•Armaturelatchingrelays•Simultaneouschannelswitching•Temperaturesensortodetect
overheating conditions
•Connectionsviastandard50or78-pinDsub cables or detachable terminal block
The34937Aisthemostversatilegeneral-purpose switch with 28 Form C channels that
can switch up to 1 A of current. In addition,
this module has four Form A channels that
can switch up to 5 A of current. For power
switching applications, the 34938A has 20
5-amp channels in a Form A topology. Each
Form A general-purpose switch can handle
up to 150 W, enough for many power line-
switching applications. For high density
applications the 34939A offers 64 Form A
channels for switching up to 1A and carry
currents up to 2A.
The general purpose switches contain
latching armature relays where multiple
channels can be closed at the same time.
Additionally, for switching reactive loads,
the optional terminal blocks have pads for
snubbing circuits.
The built-in relay counter helps predict
when relays need to be replaced.
Table 5. GP actuator selection table—specifications and characteristics
34937A 34938A 34939A
Channels/configurations 28 Form C 20 Form A 64 Form A
4 Form A
Switch type Armature, latching Armature, latching Armature, latching
Input characteristics (per channel)
Maxvolts(DC,ACRMS)[1]FormC–300V30VDC/250VAC+/-100Vpeak
FormA–30VDC/250VACMaxcurrent(DC,ACRMS)FormC–1A(2Acarry)5Aswitch1Aswitch
FormA–5Aswitch(8Acarry)(2Acarry)
(8 A carry)
Power (W, VA) [2]FormC–60W60W
FormA–150W150WVolt-Hertz limit 108 108 108
General specifications
Offset voltage 3 uV 3 uV 3 uV
InitialclosedchannelresFormC–125mΩ<125mΩ
FormA–50mΩ<60mΩDCIsolation(ch-ch,ch-earth)>10GΩ>10GΩ10GΩAC characteristics
Bandwidthatterminalblock[3]10MHz1MHz10MHzChannel Isolation at terminal block [3]
100kHz55dB60dB45dB
1MHz35dB40dB25dB
10MHz15dB5dBCapacitance at terminal block
CH–CHFormC12pF/FormA10pF65pF20pF
CH–earthFormC21pF/FormA18pF105pF70pFGeneral characteristics
Relaylifenoload/ratedFormC–100M/100k>100M/100k
FormA–50M/30k50M/30kOpen/closetimeFormC–4ms/4ms10ms/10ms4ms/4ms
FormA–10ms/10msInitial/resetrelaystateFormC–maintainstateuserconfigurablemaintain
FormA–userconfigurableAnalogbusbackplaneconnectionNoNoNo[1]DCorACRMSvoltage,channel-to-channelorchannel-to-earth[2]Limitedto6Wofchannelresistancepowerlosspermodule[3]50Ωsource,50Ωload,differentialmeasurementsverified(S21)Channel 001
(1A form C relay)
NC
NO
COM
Channel 028
(1A form C relay)
NC
NO
COM
Channel 029
(5A form A relay)
NO
COM
Channel 032
(5A form A relay)
NO
COM
Figure 9. 34937A 32-channel Form A/
Form C switch
15
34980A RF and microwave
switch modules
The34980AoffersavarietyofRFandmicrowaveswitchmodules—RFmultiplex-
ers, SPDT switching from DC to 26.5 GHz,
or a switch/ attenuator driver module that
allows you to control switches or attenua-
tors external to the 34980A mainframe.
34941A/42A—from DC to 3 GHz
TheRFswitchmodulescanbeusedtoswitch signals from DC to 3 GHz and above.
This can be useful for switching signals
between oscilloscopes, spectrum analyzers,
networkanalyzers,andotherRFtest
equipment.
Choose from the following features:
•50-or75-ohmQuad4-channel
multiplexers
•DCto3GHz•30V,0.5A,10WThe 34941A and 34942A are configured
asfourindependent1x4RFmultiplexerson a single module. Multiple banks can
be connected together to create a larger
multiplexer. To prevent ground loops, indi-
vidual multiplexers are isolated from each
other and from the mainframe’s chassis.
However, the multiplexer channels can be
chassis grounded with a simple change.
Both50-ohmand75-ohmversionsareavailable.
Figure 10. 34941A Quad 1x4 50 ohm 3 GHz multiplexer
101 102 103 104
301
3494xA 302 303 304
201 202 203 204
401 402 403
COM
COM
COM
COM 404
Quad 1x4
RF VUX
xx ohm
34941A typical initial crosstalk
Frequency
10 MHz
0 dB
-10 dB
-20 dB
-30 dB
-40 dB
-50 dB
-60 dB
-70 dB
-80 dB
-90 dB
-100 dB
40 MHz 100 MHz 400 MHz 1 GHz
4 GHz
Channel to channel
Bank to bank
34941A typical initial insertion loss
Frequency
10 MHz
0.0 dB
0.3 dB
0.6 dB
0.9 dB
1.2 dB
1.5 dB
1.8 dB
2.1 dB
2.4 dB
2.7 dB
3.0 dB
40 MHz 100 MHz 400 MHz 1 GHz 4 GHz
34941A typical initial VSWR
Frequency
10 MHz
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
40 MHz 100 MHz 400 MHz 1 GHz 4 GHz
16
34946A/47A—from DC to 26.5 GHz
For applications where you need only a
few high-frequency switches, the 34946A
and34947Aoffersingle-pole,double-throwswitches in either 4GHz, 20GHz or 26.5GHz
options. These modules internally mount
twoorthreeindependentAgilentN1810series coaxial switches. These switches are
well known for their excellent insertion
loss,isolationandVSWRspecifications.
Switch read back capabilities allow you to
query the position of the switch. You can
choose higher density with the untermi-
nated switches, or select the terminated
switches to maintain impedance match.
34946A/47A option 001
These modules can also be ordered with-
out switches installed. This give you the
capabilitytoinstallyourownN1810seriesswitches or use the module to control the
N1810Seriesswitchesoutsidethemain-
frame.
34942A typical initial crosstalk
Frequency
10 MHz
0 dB
-10 dB
-20 dB
-30 dB
-40 dB
-50 dB
-60 dB
-70 dB
-80 dB
-90 dB
-100 dB
40 MHz 100 MHz 400 MHz 1 GHz 2 GHz
34942A typical initial insertion loss
Frequency
10 MHz
0.0 dB
0.3 dB
0.6 dB
0.9 dB
1.2 dB
1.5 dB
1.8 dB
2.1 dB
2.4 dB
2.7 dB
3.0 dB
40 MHz 100 MHz 400 MHz 1 GHz 2 GHz
34942A typical initial VSWR
Frequency
Banks
2 & 3
Banks
1 & 4
10 MHz
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
40 MHz 100 MHz 400 MHz 1 GHz 2 GHz
5050 50
101 102COM
50
201 202COM
34946A Dual 1x2 SPOT Terminated Microwave Switch
Figure 11. 34946A dual 1x2 SPDT terminated microwave switch
N1810 minimum required switch options
Coil Voltage option 124 24Vdc coil
DC Connector option 201 “D” subminiature 9 pin female
Drive option 402 position indicators
17Table 6. RF and microwave selection table—specifications and characteristics
DC to 3 GHz DC to 26.5 GHz [3]
34941A 34942A 34946A 34947A
Channels quad 1x4 quad 1x4 2 SPDT 3 SPDT
Switchtype50Ωunterminated,75Ωunterminated,50Ωterminated50Ωunterminated
latching relays latching relays
RF characteristics
Frequency range [2] DC to 3 GHz DC to 1.5 GHz DC to 4 GHz, DC to 4 GHz,
20 GHz or 20 GHz or
26.5 GHz 26.5 GHz
Insertion loss [2]DCto4GHz<0.42dB,DCto4GHz<0.42dB,
(<40C/80%RH)@20GHz<0.69dB,@20GHz<0.69dB
@26.5GHz<0.8dB@26.5GHz<0.8dB
100MHz0.15dB0.15dB
1GHz0.60dB0.60dB
3GHz1.40dBN/AVSWRDCto4GHz<1.15,DCto4GHz<1.15,
@20GHz<1.30,@20GHz<1.30,
@26.5GHz<1.6@26.5GHz<1.6
100 MHz 1.03 1.15
1 GHz 1.25 1.35
3GHz1.55N/AIsolation(dB)[2]ContactfactoryContactfactoryDCto4GHz>85dB,DCto4GHz>85dB,
@20GHz>67dB,@20GHz>67dB,
@26.5GHz>60dB@26.5GHz>60dB
100MHz80dB80dB
1GHz58dB60dB
3GHz40dBN/ASpurious noise
below1.3GHz-140dBm-140dBm80dB80dBRisetime<80ps<160psN/AN/ASignaldelay<1ns<1nsN/AN/ACapacitance<30pF<30pfN/AN/ASwitching characteristics
Max volts [1]30V30V7VDC7VDCMaxcurrent0.5A0.5AN/AN/AMax power (W) 10 W [5] 10 W [5]
1W@7VDC,50Wpeak
[4]
1W@7VDC,50Wpeak
[4]
Offsetvoltage10uV10uVN/AN/AInitialchannelresistance1Ω1ΩN/AN/AVolt-Hertz limit 2 x 1010 2 x 1010
General characteristics
Relaylife300,000at30V/10mAload;300,000at30V/10mAload>5Mcycles,>5Mcycles,
100,000at10WloadRFSAmeas100,000at10WloadRFSAmeas1Mw/drive28-32VDC1Mw/drive28-32VDCOpen/close time 18 ms/18 ms 18 ms/18 ms < 15 ms/15 ms < 15 ms/15 ms
ConnectortypeFemaleSMAMini75ΩSMBFemaleSMAFemaleSMACoilvoltageN/AN/A24VDC24VDCAnalogbusbackplaneNoNoNoNo
connection
[1] Channel-to-earth
[2]50Ωsource,50Ωload(75Ωfor34942A)[3]Formoredetailedspecifications,seetheN1810TL
forthe34946AandN1810ULforthe34947A[4] 10 usec maximum duration
[5] Max power is 1 W between 30 MHz and 1 GHz
forCISPR11compliance
18
34945A/34945EXT microwave
switch/attenuator driver
This module allows you to control switches
attenuators, and other devices external
to the 34980A. The 34945A/ 34945EXT
provides the power and control signals
for many of the most popular micro-
wave switches and attenuators. One
34945A/34945EXT combination can drive
up to 64 switch coils—that’s 32 standard
SPDT switches. The 34945A/EXT can be
extended by adding additional 34945EXT
boards. The first 34945EXT is powered by
the mainframe. You can add up to seven
additional 34945EXT boards with user sup-
plied power. Multiple switch operations are
performed in sequential order, or for faster,
simultaneous switching, you can connect an
external power supply to the 34945EXT.
The Y1150A-Y1155A distribution boards
enable simple connections to the external
switches. The distribution boards plug onto
the 34945EXT and are used to route the
power and control signals from the driver
module to the switches using standard
cables.
The 34945A/34945EXT also has sensing
capabilities that allows read back of the
actual position of the switch or attenuator.
DrivesignalsforLEDindicatorsarealsoprovided to give a visual indication of the
switch position.
The following microwave switches and
attenuators are supported with the Y1150A-
Y1155A distribution boards:
•
N181x/U9397xseriesSPDTswitches
•8762/3/4seriesSPDTswitches(screwterminals)
•8765xcoaxialswitches•8766x/8767x/8768xmultiportswitches•87104x/106x/L710xx/L720xx
multiport switches
•87406xseriesmatrixswitches•87204x/206xseriesmultiportswitches•87606xseriesmatrixswitches•87222x/L7222transferswitches•849xand8490xseriesattenuators•Otherswitchesanddevices
through individual screw
terminal connections
General specifications
34945EXT switch drive
(64 channels, low side drive mode)
Driver off voltage (max) 30 V
Driver off leakage current 500 uA
Driver on current (max) 600 mA
Driveronvoltage(max)0.5V@600mA34945EXT switch drive
(64 channels, TTL drive mode)
Hioutputvoltage3V@Iout=2mALooutputvoltage0.4V@Iin=20mALoinputCurrent20mA34945EXT position indicator sense inputs
Channels 64
Loinputvoltage(max)0.8VHi input voltage (min) 2.5 V
Inputresistance>100kΩ@Vin ≤ 5 V
>20kΩ@Vin>5VMaximum input voltage 30 V
34945EXT switch drive power supply
(34945EXT powered by 34945A)
Voltage 24 V nominal (external
power supply required for
switches needing more
than 24 V)
Current100mAcontinuous+
200 mA (15 msec pulse,
25%dutycycle)34945EXT external power connection
Voltagerange4.75Vto30VCurrent limit 2 A
LED indicator (Current mode divers)
Channels 64
Supply voltage 5 V nominal
LEDdrivecurrent5mAnominal
(prog 1-20 mA)
Driver compliance voltage 0.8 V
34945EXT dimensions
11.2” x 4.5” x 1.5” high with distribution boards
installed
Maximum 8 34945 Ext’s per mainframe
Switch drive control also available in
L4445AandL4490A/91ARFSwitchPlatform.
Note:SeeApplicationNote,“ConfiguringanRF/MicrowaveSwitchSystem,”
literaturenumber5989-2272EN,forconfigu-
ration details.
Y1150A-Y1155A
distribution boards
required to control
switches (ordered separate)
34945EXT extender holds
4 distribution boar
34945A module
Figure 12. 34945A/34945EXT microwave switch/attenuator driver
19
34950A 64-bit digital
I/O with memory and counter
This module can be used to simulate or
detect digital patterns. It has eight 8-bit
digital I/O channels with handshaking, pat-
tern memory, two 10 MHz counters with
gate functions, and a programmable clock
output.
Digital input/output
The digital I/O bits are organized into
two banks of 32-bits. The I/O bits can be
configured and programmed as inputs or
outputs in 8-bit channels. The digital out-
puts can be configured as active drive or
opendrainoutputswitha10kΩpullup.User supplied pull up resistors for up to 5
V outputs are also acceptable. The digital
inputs have programmable thresholds up to
5 V for compatibility with most digital logic
standards.
The onboard pattern memory can be used
to select and output digital stimulus or
bitstream patterns, or to capture external
digital data. Each bank has independent
memory and directional control so that one
bank can output data while the other
captures data. The memory can be divided
up to 64 Kbytes per 8-bit channel.
Specifically, the digital I/O channels also
have:
•Variableactivehighdriveoutputfrom1.65 V to 5 V or open drain
•Variableinputthresholdsfrom
0 V to 5 V
•Configurablehandshaking
protocols including synchronous, and
strobe
•Programmablepolarity•Sourceorsinkupto24mAwithaImax of
400 mA per module.
•Internalalarmingformaskable
pattern match
•1hardwarepatterninterruptperbank•Connectionsviastandard78-pinDsubcables or detachable terminal block
Frequency counter/totalizer
The two channels can be used to
count
digital events, frequency, period,
duty cycle,
totalize, and pulse width. The counter/
totalizer also includes
•Programmablegatefunctionality•Programmableinputthresholds
levels 0 V to 3 V
Digital input/output characteristics
Eight 8-bit channels:
8 bits wide, input or output, non-isolated
Vin0V–5V[1]
Vout1.65V–5V[1, 2]
Iout (max) 24 mA [2]
Frequency (max) 10 MHz [3]
ILoad (max) 400 mA
trise+tfall (typ) 6 ns [5]
Handshake lines
Vin0–5V[4]
Vout1.65–5V[2, 4]
I out (max) 24 mA [2]
Frequency (max) 10 MHz
Counter function characteristics
Maxfreq10MHz(max)50%dutycycleVin0V–5VMin rise/fall time 5usec
Totalizer function characteristics
Maximumcount2^32–1(4,294,967,296)Max input freq 10 MHz (max),
rising or falling edge
programmable
Vin0V–5VGateinput0V–5VMin rise/fall time 5usec
System clock generator characteristics
Frequency20MHz–10Hzconfigurable
divide-by-n 24-bits,
programmable on/off
Vout1.65V–5V[2]
I out (max) 24 mA [2]
Accuracy: 100 ppm
[1] Configurable by 8-bit channel
[2]Lowercurrentdriveatlowervoltages[3] From memory with handshaking
[4] Configurable by bank
[5] 5 V, 50 pF load
34980A system control modules
DIO
bank
1…8
Counter/
totalizer
1…8
Channel
101
8…%
8…%
8…%
8…%
32 Bits
Bit8
Bit15
Bit16
Bit23
Bit24
Bit31
Bit0
Bit7
Bit8
Bit15
Bit16
Bit23
Bit24
Bit31
Bit0
Bit7
INTR
Channel
301
Channel
102
Channel
103
Channel
104
H0
H1
H2
IN
Gate
IN
Gate
Counter/
totalizer
2…8
32 Bits Channel
302
Clock
out
24 Bits
20 MHz – 10 Hz
CLK
DIO
bank
2…8
Channel
201
8…%
8…%
8…%
8…%
INTR
Channel
202
Channel
203
Channel
204
H0
H1
H2
Figure 13. 34950A 64-channel digital I/O
20
34951A 4-channel isolated
D/A converter with
waveform memory
This module has four independent, isolated
channels that output DC voltage up to ±
16 V or DC current up to ± 20 mA. The gain
and offset can be adjusted on-the-fly. Each
channel can be controlled manually, or use
the onboard memory to download a wave-
form. The 500k of memory is global and can
store up to 32 waveforms. Any waveform
can be dynamically allocated among one
or more channels and output as a point-to-
point arbitrary waveform generator at up to
200k points/sec. You can use the standard
sine, square or ramp wave shapes provided
or define your own wave shape using over
500,000 points and output to a device under
test.ThereisalsoasingleCLKthatcanbedivided down for each channel indepen-
dently.
The calibration command connects the D/A
converters to the internal DMM to be auto-
matically calibrated. Connections to the
module can be made via standard 50-pin
Dsub cables or a detachable terminal block.
General specifications
Maximum update rate: 200 kHz point-to-point
Monotonic: to 16-bits
Isolation:>80VDC/ACpeak
(chan-to-chassis or
chan-to-chan)
Synchronization: Software commands
or external trigger
Internal/external
CLKaccuracy:100ppmACaccuracy:NotspecifiedDC voltage
Amplitude: ± 16 V up to 10 mA
Resolution:16-bits=500uVAmplitude
accuracy(DC):±(0.05%+3.0mV)
(90 days, Tcal ± 5°C or
Cal:MOD?: ± 5°C)
Rippleandnoise:<2mVrms,20Hzto
250kHzinto10kΩloadSettlingtime:40uS(-fullscaleto+full
scale step, single channel,
to rated accuracy)
Outputimpedance:<1Ωwiththeload
sensed
DC current
Range:±20mAResolution:16-bit=630nAAccuracy:±(0.09%+5.0µV)
(90 days, Tcal ± 5°C or
Cal:MOD?: ± 5°C)
Rippleandnoise:<2uArms,20Hzto
250kHzinto250ΩCompliance voltage: ± 12 V
Max open circuit
voltage: < ± 22 V
Phase-locking I/O trigger characteristics
Trigger input
Inputlevel:TTLcompatible
(3.3 V logic, 5 V tolerant)
Slope:Risingorfalling,
selectable
Pulsewidth:>100nSInputimpedance:>10kΩ,DCcoupled
Trigger output
Level:TTLcompatible
into1kΩ(3.3Vlogic)Outputimpedance:50Ωtypical Clock input
Inputlevel:TTLcompatible
(3.3 V logic, 5 V tolerant)
Inputimpedance:>10kΩ,DC Maximum rate: 10 MHz
Clock output
Level:TTLcompatible
into1kΩ(3.3Vlogic)Outputimpedance:50Ωtypical Maximum rate: 10 MHz
Accuracy: ± 100 ppm
Channel
01
16 Bits DAC 1
16 Bits
DACx
Channel
02
16 Bits DAC 2
Channel
03
16 Bits DAC 3
Channel
04
Internal clock
Internal trigger
User supplied clock (bidirectional)
User supplied trigger (bidirectional)
HI voltage sense
Disconnect
Calibration bus
(ABUS 1)
Customer
system
HI
LO
LO voltage sense
Immediate
data
Calibration constant
in non-volatile memory
Waveform
memory
16 Bits DAC 4
Figure 14. 34951A 4-channel isolated D/A converter
21
34952A multifunction module
with 32-bit DIO, 2-channel D/A
and totalizer
The multifunction module offers the flexibil-
ity you need for system control. The 34952A
has four 8-bit digital I/O channels, a 100-
kHz gated totalizer, and two ± 12 V analog
outputs—all on a single earth-referenced
module. The digital inputs and totalizer
input may be included in a scan list. Alarm
limits for the digital and totalizer inputs are
evaluated continuously, capturing and log-
ging alarm conditions even between scans.
Connections can be made via standard
50-pin Dsub cables or detachable terminal
block. The 34952T terminal block has a
pinout for connection to an external Opto
22 board.
Digital input/output characteristics
Four 8-bits channels, 8 bits wide, input or output,
non-isolated
Vin(L)<0.8V(TTL)Vin(H)>2.0V(TTL)Vout(L)<0.8V@Iout=-400mA
per output
Vout(H)>2.4V@Iout=1mAVin(H) max < 42 V with external open
drain pull-up
Alarm Maskable pattern match
or state change
Speed 4 ms (max) alarm sam-
pling
Latency5ms(typical)to34980A
alarm output
Read/writespeed95/sTotalize input characteristics
Max count 226 - 1
Totalize input 100 kHz (max) rising or
falling edge,
programmable
Signal level 1 Vp-p (min) 42 Vpk (max)
Threshold0VorTTLGateinputTTL-Hi,TTL-Lo,ornoneCountresetManualorread+resetReadspeed85rds/sAnalog output characteristics
DAC 1, 2 ± 12 V, non-isolated
Resolution1mVIOUT 10 mA max
Settlingtime1msto0.01%ofoutputAccuracy±(%ofoutput+mV)
1year(0.25%+20mV)Temp.coefficient±(0.015%+1mV)/°CChannel
006
Channel
005
16 Bits
32 Bits Cnt H
Cnt L
Gate
Gate
DAC
1« 8
Totalizer
Channel
007
16 Bits DAC
2« 8
Channel
004
8« %
DIO
bank
Channel
003
8« %
Channel
002
8« %
Channel
001
8« % Bit0
Bit7
Bit8
Bit15
Bit16
Bit23
Bit24
Bit31
Figure 15. 34952A multifunction module
22
34959A breadboard module
Use this module to create your own custom
designs inside the 34980A mainframe.
You can control your custom circuits with
accesstoboththe+12Vand+5Vsup-
plies, 28 relay drive lines and two 8-bit
GPIO ports. Your design can be isolated
from the analog buses or connected by
loading the backplane switches. Simply
mount your custom PC board or other
components into the space provided and
connect via the two ribbon connectors
provided. The module is provided with two
50-or78-pinDsubconnectoropenings.Forcustom connections, use the detachable
flat faceplates for easy modification. You
can program your circuitry using standard
read and write commands in SCPI.
General specifications
Max module power dissipation 6 W
Power available
12Vregulationnoloadtofullload10%
5Vregulationnoloadtofullload5%
Max power from 12 V 6 W
Max power from 5 V 1 W
Relaydrives Channels: 28, sink up to 100 mA
Max Input Voltage: 42 V
LeakageCurrent:8uAGPIO ports
Chan 1 and
Chan 2: 8 configure bits as input
or output
Chan 3: 3 output bits
High Input: 2 V min, 5.5 V max
LowInput:0Vmin,0.8VmaxHighOutput:2.4V@4mA,3V@
500 uA
LowOutput:0.4V@8mAAvailable space for internal board/components:
5.4x7.5xeither0.9inchesheightwithoutPCboard,or0.7incheshighwithPCboard.
34959A Breadboard PC Board
Custom
Circuitry
and
Field
Wiring
Ribbon
Cable
Connector
(P101)
Ribbon
Cable
Connector
(P102)
34980A
Mainframe
Digital
Backplane
34980A
Analog
Buses
+5V
34980A Mainfram
eC
ustom PC Board
(Ch 911-914)
8 Bits
8 Bits
ABus Relay Drives
4
(Ch 002)
(Ch 001)
Digital I/O
Digital I/O
4 (2-Wire)
(Ch 101-128) 28
+12V
Relay Drives
4
Analog Bus
Relays (4)
(User Installed)
Figure 16. 34959A breadboard module
23
34980A system specifications and characteristics
DMM accuracy ± (% of reading + % of range)
Includes measurement error, switching error, and transducer conversion error
Measurement including switch error [1]
Function Range
[4] Frequency, etc. 24 hour [2,3] 90 days 1 year Temperature
Tcal ± 1°C Tcal ± 5°C Tcal ± 5°C coefficient/°C
>Tcal ± 5°C
DCvoltage100.0000mV0.0030+0.00350.0040+0.00400.0050+0.00400.0005+0.0005
(with34921A/22A/1.000000V0.0020+0.00060.0030+0.00070.0040+0.00070.0005+0.0001
31A/32A) [10] [11] 10.00000 V 0.0015 + 0.0004 0.0020 + 0.0005 0.0035 + 0.0005 0.0005 + 0.0001
Inputimpedance=Hi-Z100.0000V0.003+0.00060.0045+0.00060.0055+0.00060.0005+0.0001
10Vrangeandbelow300.0000V0.003+0.00200.0045+0.00300.0055+0.00300.0005+0.0003TrueRMSACAllrangesfromvoltage [5]100.0000mV3Hz-5Hz1.00+0.031.00+0.041.00+0.040.100+0.004
to100.0000V5Hz-10Hz0.35+0.030.35+0.040.35+0.040.035+0.004
10 Hz-20 kHz 0.04 + 0.03 0.05 + 0.04 0.06 + 0.04 0.005 + 0.004
20kHz-50kHz0.10+0.050.11+0.050.12+0.050.011+0.005
50kHz-100kHz0.55+0.080.60+0.080.60+0.080.060+0.008
100 kHz-300 kHz [6]4.00+0.504.00+0.504.00+0.500.20+0.02
300.0000V3Hz-5Hz1.00+0.051.00+0.081.00+0.080.100+0.008
5Hz-10Hz0.35+0.050.35+0.080.35+0.080.035+0.008
10Hz-20kHz0.04+0.050.05+0.080.06+0.080.005+0.008
20kHz-50kHz0.10+0.100.11+0.120.12+0.120.011+0.012
50kHz-100kHz0.55+0.200.60+0.200.60+0.200.060+0.020
100 kHz-300 kHz[6]4.00+1.254.00+1.254.00+1.250.20+0.05Resistance[7]100.0000Ω1mA0.0030+0.00350.008+0.0040.010+0.0040.0006+0.0005
1.000000kΩ1mA0.0020+0.00060.008+0.0010.010+0.0010.0006+0.0001
10.00000kΩ100uA0.0020 + 0.0005 0.008 + 0.001 0.010 + 0.001 0.0006 + 0.0001
100.0000kΩ10uA0.0020+0.00050.008+0.0010.010+0.0010.0006+0.0001
1.000000MΩ5.0uA0.002+0.0010.008+0.0010.010+0.0010.0010+0.0002
10.00000MΩ500nA0.015+0.0010.020+0.0010.040+0.0010.0030+0.0004
100.0000MΩ500nA/10MΩ0.300+0.0100.800+0.0100.800+0.0100.1500+0.0002Frequency and 100 mV to 300 V 3 Hz-5 Hz 0.10 0.10 0.10 0.005
period [8] 5 Hz-10 Hz 0.05 0.05 0.05 0.005
10 Hz-40 Hz 0.03 0.03 0.03 0.001
40 Hz-300 kHz 0.006 0.01 0.01 0.001
DCcurrent10.00000mA<0.1Vburdentyp.0.005+0.0100.030+0.0200.050+0.0200.002+0.0020
(34921 only) 100.0000 mA < 0.6 V 0.010 + 0.004 0.030 + 0.005 0.050 + 0.005 0.002 + 0.0005
1.000000A<2V0.050+0.0060.080+0.0100.100+0.0100.005+0.0010TrueRMSACcurrent10.00000mA3Hz-5Hz1.00+0.041.00+0.041.00+0.040.100+0.006
(34921A only) and [5]5Hz-10Hz0.30+0.040.30+0.040.30+0.040.035+0.006
1.0 A 10 Hz-5 kHz 0.10 + 0.04 0.10 + 0.04 0.10 + 0.04 0.015 + 0.006
100.0000 mA [9]3Hz-5Hz1.00+0.51.00+0.51.00+0.50.100+0.006
5Hz-10Hz0.30+0.50.30+0.50.30+0.50.035+0.006
10Hz-5kHz0.10+0.50.10+0.50.10+0.50.015+0.006[1] One hour warm-up and a fixed configuration
with slow AC filter, sine wave input, and 6 1
/
2
digits. Temperature within ± 5°C of temper-
ature at calibration (Tcal between 18-28°C)
[2] 90 minute warm-up and a fixed configuration
and 6 1
/
2 digits. Temperature within ± 1°C of
temperature at calibration (Tcal between
18-28°C)
[3]Relativetocalibrationstandards[4]20%overrangeonallrangesexcept300VDC and AC ranges and 1 ADC and AC
current ranges [5]Forsinewaveinput>5%ofrange;forinputsfrom1%to5%ofrangeand<50kHzadd0.1%ofrangeadditionalerror;
for AC filter slow
[6]Typically30%ofreadingerrorat1MHz,
limited to 1 x 108 volt-hertz
[7]Accuracyfor4-wireohms.Add4ohmsuncertainty (typ) for 2-wire ohms function
due to conductor and contact resistance
variability in the DMM. The 2-wire resistance
accuracy can be improved by measuring a
short on each channel and using the built-
iny=Mx+bscalingfunction.SeeUserGuide, Chapter 3. The series resistance of
the 34923/24/25/33/34 limits the use of the
100 ohms resistance range. Agilent recom-
mends the use of 4-wire ohms for resistance
measurements. For high accuracy voltage
measurements, select the DMM input resis-
tancesettingof>10Gohmstominimizetheimpact of relay contact resistance.
[8]Forinputs>100mV;forinputs10mVto100mVmultiply%ofreadingerrorX10;
for 1 sec aperture (6 1
/
2 digits)
[9]Specifiedonlyforinputs>10mA.
For AC filter slow
[10] Add 50 uV error for 34923A/24A/33A and
7µVerrorforthe34925A[11]VoltagemeasurementsusingFixed-Zinputimpedance for the 100 V and 300 V ranges.
24
Additional Low Frequency Error for ACV, ACI (% of reading)
Frequency
AC Filter Slow AC Filter Medium AC Filter Fast
10Hz-20Hz00.74–
20Hz-40Hz00.22–
40Hz-100Hz00.060.73
100 Hz - 200 Hz 0 0.01 0.22
200 Hz - 1 kHz 0 0 0.18
>1kHz000
Additional Error for Frequency, Period (% of reading)
Aperture (Digits)
Frequency
1 second 0.1 seconds 0.01 seconds
( 6
1
/
2
digits) (5
1
/
2
digits) (4
1
/
2
digits)
3 Hz- 5 Hz 0 0.12 0.12
5Hz-10Hz00.170.17
10 Hz - 40 Hz 0 0.2 0.2
40 Hz - 100 Hz 0 0.06 0.21
100 Hz - 300 Hz 0 0.03 0.21
300Hz-1kHz00.010.07
>1kHz000.02
Typical system speeds (Measurementsmadeona3.2GHzPCrunningVB6inWindowsXPPro)Single Channel Reading times in msec Direct measurements – direct to I/O Direct measurement
(includes switch, measure time and I/O time) to memory(GPIB)
Single channel [1] [2]
GPIBUSB2.0LANMeasurementinto
msec msec (w/ VXI 11) msec memory msec
Singlechannel,DCV2.833.144.571.90Singlechannel,ACV5.005.355.754.00Single channel, ohms 2.91 3.14 4.65 1.90
Singlechannelwhilechanging9.5210.6411.768.40
scale (eg MEAS DCV 10 / MEAS DCV 1)
Single channel while changing 128 120 120 120
function (eg. MEAS ACV / MEAS DCV)
Command execution time [3]
34925AOpenorClose0.70.91.6
Read?2.93.34.7
Close/Read/Open4.85.36.5
Init/*WAI 1.9 2.1 3
Close/Init/Open3.74.14.734923A Open or Close 0.9 1.2 1.8
Read?2.93.34.7
Close/Read/Open5.35.86.5
Init/*WAI 1.9 2.1 3
Close/Init/Open4.24.75.234921AOpenorClose4.755.3
Read?2.93.34.7
Close/Read/Open141515
Init/*WAI 1.9 2.1 3
Close/Init/Open 12.4 14 14
34934A Close 1.8 2.2 3.1
Read?2.83.14.8
Open 1.5 1.8 3.2
[1]ReadingsweremadewithminimumNPLC,delay0,displayoff,autozerooff[2]Alltimesincludetheissueof“READ?”andtheretrievalofdata[3]CLOSEorOPENbustransfertimesallowedtooverlappreviouscommand;commandparsetimesoverlapcurrentactivityuntilIOlatencydominantTemperature measurement accuracy
Temperature 1-year accuracy Type Best range [1] Extended range [1] Temperature
coefficient/°C
ThermocoupleB1100°Cto1820°C1.2°C400°Cto1100°C1.8°C0.03°C
(34921A only, E -150°C to 1000°C 1.0°C -200°C to -150°C 1.5°C 0.03°C
includes cold J -150°C to 1200°C 1.0°C -210°C to -150°C 1.2°C 0.03°C
junction accuracy K -100°C to 1200°C 1.0°C -200°C to -100°C 1.5°C 0.03°C
onterminalblock)N-100°Cto1300°C1.0°C-200°Cto-100°C1.5°C0.03°C
R300°Cto1760°C1.2°C-50°Cto300°C1.8°C0.03°C
S400°Cto1760°C1.2°C-50°Cto400°C1.8°C0.03°C
T -100°C to 400°C 1.0°C -200°C to -100°C 1.5°C 0.03°C
RTDR
o
from -200°C to 600°C 0.06°C 0.003°C
49Ωto2.1KΩThermistor 2.2 k, 5 k, 10 k -80°C to 150°C 0.08°C 0.002°C
[1] For total measurement accuracy, add temperature probe error; for <1
°
C accuracy, an external fixed reference is required
25
Scanning measurement rates to bus or memory
Direct measurements – direct to I/O Measurement
(includes switch, measure time and I/O time) into memory
Scanning channels [1] GPIB USB 2.0 LAN (w/ VXI 11) Into memory
ch/sec ch/sec ch/sec ch/sec
Scanning DCV or 2-wire ohms
34925A 920 860 980 1000
34923A/24A588572605625 34921A/22A 109 109 109 109
Scanning ACV [2]
34925A 318 315 323 318
34923A/24A 260 260 260 260
34921A/22A 88 88 88 88
Scanning temperature
34921A 109 109 109 109
Scanning digital in
34950A 660 592 815 1038
[1] Speeds are for 4 1/2 digits, delay 0, display off, autozero off and scanning is within bank on the
same module; add 10ms for between banks or modules for 2-wire measurements; 4-wire mea-
surements are slower
[2] Add additional time for filter setting on ACV
Data out of memory to LAN, USB, or GPIB
(data transfer rate with 1000 channel blocks)
GPIB USB 2.0 LAN (w/ VXI 11) [1]
rds/sec rds/sec rds/sec
Readings256024003542readings with timestamp 1304 1230 1826
readingswithallformatoptionsON9809261361[1]LANlargeblockthroughputrateisincreasedbyapproximately30%usingLANsocketsSingle channel measurement rates–DMM reading rates [1] [2]
Function Resolution Rds/s
DCV 4
1
/
2 digits (0.02 plc) 3000
5
1
/
2 digits (1 plc) 59
6
1
/
2 digits (10 plc) 6
2-wire resistance 4 1
/
2 digits (0.02 plc) 2000
5
1
/
2 digits (1 plc) 58
6
1
/
2 digits (10 plc) 6
Thermocouple (0.02 plc) 2000
0.1°C (1 plc) 59
RTD/Thermistor1°C(0.02plc)1900
0.1°C (1 plc) 58
0.01°C (10 plc) 6
ACV 6
1
/
2 fast (200 Hz) 350
6
1
/
2 Med (20 Hz) 350
6
1
/
2 slow (3 Hz) 300
Frequency, period 4 1
/
2digits(10ms)70
5
1
/
2 digits (100 ms) 9
6
1
/
2 digits (1 s gate) 1
[1]Readingspeedsfor60Hz;autozeroOFF[2] For fixed function and range, readings to memory,
scaling and alarms off, autozero OFF
34934A Multi-channel close speeds over GPIB (msec)
Isolate or fixed Auto 100 Auto 0
mode mode mode
Close2channels0.971.221.31Close 5 channels 0.43 0.54 0.56
Close 10 channels 0.22 0.28 0.29
Close60channels0.130.170.21
26
Measurement characteristics with
optional internal DMM
DC voltage
Measurement method Continuously integrating multi-slope
III A-D converter
A-Dlinearity0.0002%ofreading+0.0001%of
range on 10 V range
Input resistance
100mV,1V,10VrangesSelectable10MΩor>10,000MΩ
100V,300Vranges10MΩ±1%Input bias current < 50 pA at 25°C
Input protection 300 V all ranges
True RMS AC voltage
MeasurementmethodACcoupledTrueRMS—measures
the AC component of the input with
up to 300 VDC of bias on any range
Crest factor Maximum of 5:1 at full scale
Additional crest factor
errors(non-sinewave)Crestfactor1-20.05%ofreading
Crestfactor2-30.15%ofreading
Crestfactor3-40.30%ofreading
Crestfactor4-50.40%ofreadingACFilterBandwidth:
Slow 3 Hz - 300 kHz
Medium 20 Hz - 300 kHz
Fast 200 Hz - 300 kHz
Inputimpedance1MΩ±2%inparallelwith150pFInput protection 300 Vrms all ranges
Resistance
Measurement method Selectable 4-wire or 2-wire ohms
CurrentsourcereferencedtoLOinputOffsetcompensationSelectableon100Ω,1kΩ,
10kΩrangesMaximumleadresistance10%ofrangeperleadfor100Ω
and1kΩranges.1kΩonall
other ranges
Input protection 300 V on all ranges
Frequency and period
MeasurementmethodReciprocalcountingtechniqueVoltage ranges Same as AC voltage function
Gate time 1 s, 100 ms, or 10 ms
MeasurementtimeoutSelectable3Hz,20Hz,200HzLFlimitMeasurement Consideration (Frequency and Period)
All frequency counters are susceptible to error when measuring low-voltage,
low-frequency signals. Shielding inputs from external noise pickup is criti-
cal for minimizing measurement errors.
DC current
Shuntresistance5Ωfor10mA,100mA;
0.1Ωfor1AInput protection 1A 250 V fuse on 34921A module
True RMS AC current
Measurement method Direct coupled to the fuse and shunt.
ACcoupledTrueRMSmeasurement
(measures the ac component only)
Shuntresistance5Ωfor10mA;0.1Ωfor100mA,1AInput protection 1A 250 V fuse on 34921A module
Thermocouple
Conversion ITS-90 software compensation
ReferencejunctiontypeInternal,fixed,orexternalOpenthermocouplecheckSelectableperchannel.Open>5kΩThermistor 44004,44007,44006seriesRTD a=0.00385(DIN)anda=0.00392Measurement noise rejection 60 (50) Hz [1]
DCCMRR140dB
ACCMRR70dBIntegration time Normal mode rejection [2]
200plc/3.33s(4s)105dB[3]
100plc/1.67s(2s)100dB[3]
20plc/333ms(400ms)95dB[3]
10plc/167ms(200ms)90dB[3]
2plc/33.3ms(40ms)85dB
1plc/16.7ms(20ms)60dB
<1plc0dB[1]For1KΩunbalanceinLOlead[2]Forpowerlinefrequency±0.08%[3]Forpowerlinefrequency±1%use75dBor±2.5%use60dBcontinued
27Measurement characteristics with
optional internal DMM continued
DC operating characteristics [4]
Function Digits[5] Readings/s
Additional RMS noise error
DCV[7], DCI, and 6 1
/
2 0.6(0.5)0%ofrange
Resistance(≤10kΩ)6 1
/
2 6(5)0%ofrange
5 1
/
2 60(50)0.001%ofrange
5 1
/
2 3000.001%ofrange[6]
4 1
/
2 6000.01%ofrange[6]
4 1
/
2 30000.1%ofrange[6]
Autozero OFF operation
Following instrument warm-up at calibration temerature ±1°C and
<10minutes,add0.0002%rangeadditionalerror+5µV.(For300VDC,insteadof.0002%ofrange,need.00066%ofrange)Settling considerations
Readingsettlingtimesareaffectedbysourceimpedance,lowdielectricabsorption characteristics, and input signal changes.
AC operating characteristics
[8]
Function Digits[9] Readings/s
AC filter
ACV, ACI: 6 1
/
2 7sec/readingSlow(3Hz)
6 1
/
2 1 Medium (20 Hz)
6 1
/
2 8[10] Fast (200 Hz)
6 1
/
2 100[11] Fast (200 Hz)
[4]Readingspeedsfor60Hzand(50Hz)operation;autozeroOFF[5] 6
1
/
2 digits=22bits;51
/
2 digits=18bits;41
/
2 digits=15bits[6]Add20µVforDCV,4µAforDCI,or20mΩforresistance[7)For300VDC,multiplytheadditionalnoiseerrorby3.3[8]Maximumreadingratesfor0.01%ofACstepadditionalerror;additonal
settling delay required when input DC level varies
[9] 6
1
/
2 digits=22bits;51
/
2 digits=18bits;41
/
2 digits=15bits[10] For external trigger or remote operation using default settling delay
(Delay Auto)
[11] Maximum limit with default settling delays defeated
System specifications
Scanning inputs
Analog: 34921A, 34922A, 34923A, 34924A, and
34925A multiplexer channels
Digital: 34950A/52A digital in and totalize
Scan triggering
Source Interval, external, button press, software,
or on monitor channel alarm
Scan count 1 to 50,000 or continuous
Scan interval 0 to 99 hours; 1ms step size
Channel delay 0 to 60 seconds per channel; 1 ms step size
External trig delay < 2 ms. With monitor on < 200 ms
External trig jitter < 2 ms
Alarms
AnaloginputsHi,Lo,orHi+LoevaluatedeachscanDigital inputs 34950A/52A digital in maskable pattern
match or state change
34950A/52A frequency and totalize:
Hi limit only
Monitor channel Alarm evaluated each reading
Alarmoutputs4TTLcompatible
SelectableTTLlogicHiorLoonfailLatency5ms(typical)Memory
Type Volatile
Readings500,000withtimestamp,readableduringscanStates 5 instrument states with user label
Alarm queue Up to 20 events with channel number, reading,
and timestamp
System features
Per-channelmathIndividualMx+Bscalingandcalculatedreal
Min/max/average time
Power fail recovery Save switch states
RelaymaintenanceCountseachrelayclosureandstoreson
module User resettable
Real-timeclockBattery-backed,20-yeartypicallife.. ..
28
General specifications
PowersupplyUniversal100Vto240V±10%Powerlinefrequency50–60Hz±10%automaticallysensedPower consumption 150 VA
Operating environment Full accuracy for 0 °C to 55 °C
Fullaccuracyto80%R.H.at40°C
IEC 60664-1 pollution degree 1
Storageenvironment-40°Cto70°C[1]
Mainframe dimensions 133 H x 426 W x 341 D mm (5.25” x 16.8” x 14”)
Full rack, 3 units high
Mainframe weight 8.8 kg (19.6 lbs)
Moduledimensions280Hx170Wx27Dmm(11”x6.7”x1”)Moduleweights0.73to1.18kg(1.6to2.6lbs)Terminalblockdimensions28Hx170Wx114Dmm(1.1”x6.7”x4.5”)Terminalblockweights0.27to0.36kg(0.6to0.8lbs)SafetyconformstoCSA,UL/IEC/EN61010-1EMCconformstoIEC/EN61326-1,CISPR11Warranty 1 year
Software
Agilent connectivity software included
AgilentIOLibrariesSuite14orgreater(E2094)Minimum system requirements (IO libraries and drivers)
PChardwareIntelPentium100MHz,64MbyteRAM,
210 Mbyte disk space
Display800x600,256colors,CD-RomdriveOperating system [2] Windows®98SE/NT/2000/XPComputer interfaces StandardLAN10BaseT/100BaseTx
StandardUSB2.0
IEEE488.2GPIBSoftware driver support for programming languages
Softwaredrivers:IVI-CandIVICOMforWindowsNT/2000/XP
LabVIEWCompatible with programming tools and environments:
AgilentVEEPro,AgilentT&MToolkit
(requiresVisualStudio.NET)
NationalInstrumentsTestStand,
MeasurementStudio,LabWindows/CVI,
LabVIEW,SwitchExecutive
MicrosoftVisualStudio.NET,C/C++,
VisualBasic6Agilent BenchLink data logger software system requirements
Operating system: Windows 2000 SP4, XP SP 2
Controller:RecommendPentium® 4, 800 MHz or
greater, Min: Pentium III, 500 MHz
RAM:Recommend256MBorgreater,Min128MB
DiskSpace:Recommend200MB,Min100MB
Display:1024x768resolution,256colorsAgilent BenchLink data logger features
Configuration Spreadsheet-like channel configurations page.
Upload and Download instrument configura-
tions.Computedchannelsusing+-*/,dB,dBm,dBV,x2,xandfull,1
/
2 , or 1
/
4 bridge strain
GraphicalDisplaysReal-timeandhistoricaldatadisplaysAdd,delete, size, and configure real time Strip chart
with markers and alarm indication, bar and
scattercharts,Histogramwithstatistics,Barmeter, and Data table
GraphicalControlsSliders,switches,buttons,andLEDlightsAlarm/LimittestingStart/Stopscanningonalarmcondition
Control34903Arelaystateor34907Adigitaloutput on alarm
DataRealtimestreamed(saved)todiskAutomatically export data and configurations
Copy data or graphics to windows clipboard
Exportyourselecteddatato.CVS,.XML,orTXTformats
Event logging Automatic entry of alarms and errors
[1] Storage at temperatures above 40 °C will decrease battery life
[2]LoadIOLibrariesVersionMforWindowsNTsupportorversion
14.0 for Windows 98 SE support
Definitions for specifications
Specifications describe the warranted performance of calibrated
instruments that have been stored for a minimum of 2 hours within
the operating temperature range of 0 °C to 50 °C, unless otherwise
stated, and after a 45 minute warm-up period. Data represented in
this document are specifications unless otherwise noted.
Characteristics describe product performance that is useful in the
application of the product, but that is not covered by the prod-
uct warranty. Characteristics are often referred to as Typical or
Nominal values.
• Typical describes characteristic performance, which 80% of
instruments will meet when operated over a 20 °C to 30 °C tem
perature range. Typical performance is not warranted.
• Nominal describes representative performance that is useful in
the application of the product when operated over a 20 °C to
30 °C temperature range. Nominal performance is not warranted.
Note: All graphs contain measured data from several units at room
temperature unless otherwise noted.
29
Ordering instructions
Mainframe – holds up to 8 plug-in modules
34980AMultifunctionswitch/measuremainframeComesstandardwith“DMM”option,BenchLinkDataLoggerSoftware,
UserGuideonCD-ROM,Powercordandquickstartpackage.34832ABenchLinkDataLoggerProSoftwareOptionalsoftwarepackagethataddslimitcheckinganddecisionmaking
for more complex applications.
Description Module Optional terminal blocks, cables,
connectors connector kits
Multiplexer modules
34921A40-channelarmaturemultiplexerw/lowthermaloffset2–50-pinDsub,Male3492xTTerminalblockwithscrewconnectors
(order 34921T for temp reference)
34923A40/80-channelreedmultiplexerY1135A–1.5m50-pinM/FDsubcable34925A40/80-channelopticallyisolatedFETmultiplexerY1136A–3m50-pinM/FDsubcableY1139A–50-pinfemalesoldercupconnectorkit34922A70-channelarmaturemultiplexer2–78-pinDsub,Male3492xTTerminalblock,option001forsolder
connections, option 002 for screw connectors
34924A70-channelreedmultiplexerY1137A–1.5m78-pinM/FDsubcableY1138A–3m78-pinM/FDsubcableY1140A–78-pinfemalesoldercupconnectorkit
Matrix modules
34931ADual4x8armaturematrix2–50-pinDsub,Male3493xTTerminalblockwithscrewconnectors34932ADual4x16armaturematrixY1135A–1.5m50-pinM/FDsubcable34933ADual/quad4x8reedmatrixY1136A–3m50-pinM/FDsubcableY1139A–50-pinfemalesoldercupconnectorkit34934AQuad4x32reedmatrix2-78-pinDsub,Male34934TTerminalblockwithscrewconnectors
OR34934CConfigurationblockY1134A–Rowexpansioncablesfor34934C
and 34934T
Y1137A–1.5m78-pinM/FDsubcableY1138A–3m78-pinM/FDsubcableY1140A–78-pinfemalesoldercupconnectorkit
General purpose/actuator modules
34937A32-channelFormC/FormAgeneral-purposeswitch2–50-pinDsub,Male3493xTTerminalblockwithscrewconnectors34938A20-channel5-ampFormAswitchY1135A–1.5m50-pinM/FDsubcableY1136A–3m50-pinM/FDsubcableY1139A–50-pinfemalesoldercupconnectorkit34939A64-channelFormASwitch2-78-pinDusb,Male34939TTerminalblockwithscrewconnectorsY1137A–1.5m78-pinM/FDsubcableY1138A–3m78-pinM/FDsubcableY1140A–78-pinfemalesoldercupconnectorkit
30
Screw terminal block
Ordering instructions continued
RF and microwave modules
34941AQuad1x450-ohm3-GHzRFmultiplexer20–SMARequiresstandard50ohmSMARFcables,andoptional8710-2576SMAExtenderwrenchforconnectingSMA connectors
34942AQuad1x475-ohm1.5GHzRFmultiplexer20–MiniSMBRequiresmini75ohmSMBRFcables,adapters34945AMicrowaveswitch/attenuatordriverN/ARequires34945EXTandoptionalY1150A-Y1155A
distribution boards (one 34945EXT is automatically included
in each 34945A order)
34946ADual1x2SPDTterminatedmicrowaveswitch6SMARequiresstandard50ohmSMAcablesandadapters
Option 001: Noswitchesinstalled8710-2576SMAExtenderforconnectingSMAconnectors
Option 004: 4GHZswitchesinstalledOption001supportsqty2ofanyofthe
Option 020: 20 GHz switches installed following switches:
Option 026: 26.5GHzswitchesinstalledN1810ULunterminatedSPDT
N1810TLterminatedSPDT
N1811TLterminated4porttransfer
N1812ULunterminated5porttransfer34947A Triple 1x2 wwunterminatedmicrowaveswitch9SMARequiresstandard50ohmSMAcablesandadapters
Option 001: Noswitchesinstalled8710-2576SMAExtenderforconnectingSMAconnectors
Option 004: 4GHZswitchesinstalledOption001supportsqty3N1810ULunterminated
Option 020: 20 GHz switches installed SPDT switches
Option 026: 26.5 GHz switches installed
System measurement and control modules
34950A64-bitdigitalI/Owithmemoryandcounter2–78-pinDsub,Female3495xTTerminalblockwithscrewconnectorsY1137A–1.5m78-pinM/FDsubcableY1138A–3m78-pinM/FDsubcableY1142A–78-pinmalesoldercupconnectorkit34951A4-channelisolatedD/Aconverterwithwaveform1–50-pinDsub,Female3495xTTerminalblockwithscrewconnectors memory (DMM option required for calibration)Y1135A–1.5m50-pinM/FDsubcableY1136A–3m50-pinM/FDsubcableY1141A–50-pinmalesoldercupconnectorkit34952A Multifunction module with 32-bit DIO, 2-ch D/A
and totalizer
34959ABreadboardmodule26-&40-pininternalAnyterminalblockcanbeusedassuming
ribboncableconnectors50-or78-pinDsubisusedAccessories
Y1130ARackmountkitfor34980A,forwardorreversemount(mustordereitherE3663AC
rail kit for forward rack mounting or E3664AC rail kit for reverse rack mounting)
Y1131A Verification and diagnostic tools for 34980A mainframe and modules
(select option for specific module support)
Y1132A Module extender for 34980A. Extends cable to locate module outside of mainframe
8710-2576SMAExtenderforconnectingSMAconnectors.Terminal blocks used for discrete wiring. Supports 20 AWG wire for
<100connectionsand24AWGfor>100connections.3492xT Multiplexer terminal blocks
3493xT Matrix and GP terminal blocks
3495xT Measurement and control terminal blocks
Cables [1] used for direct cable connection to module. some modules require 2 cables
Y1134ARowexpansioncablesfor34934Cand34934TY1135A1.5m50-pinDsub,M/Ftwistedpairwithoutershieldcable–300VY1136A3m50-pinDsub,M/Ftwistedpairwithoutershieldcable–300VY1137A1.5m78-pinDsub,M/Ftwistedpairwithoutershieldcable–300VY1138A3m78-pinDsub,M/Ftwistedpairwithoutershieldcable–300VRackkit
31
Cables [1] used for direct cable connection to module. some modules require 2 cables
Y1135A1.5m50-pinDsub,M/Ftwistedpairwithoutershieldcable–300VY1136A3m50-pinDsub,M/Ftwistedpairwithoutershieldcable–300VY1137A1.5m78-pinDsub,M/Ftwistedpairwithoutershieldcable–300VY1138A3m78-pinDsub,M/Ftwistedpairwithoutershieldcable–300VConnector kits [1] used to build custom cables
Y1139ASoldercupconnectorkitfor34921/23/25/31/32/33/37/38–50-pinDsub
female–125VY1140ASoldercupconnectorkitfor34922,34924–78-pinDsubfemale–60VY1141ASoldercupconnectorkitfor34951,34952–50-pinDsubmale–125VY1142ASoldercupconnectorkitforthe34950A–78-pinDsubmale–60V34945A accessories –
distribution boards required for control of external switches. One 34945EXT
is required for each 64 coils (included, add more 34945EXTs for additional coils).
34945EXTExternaldriverfor34945A,onerequiredforeach64coils–
holds4distributionboards.OrderY1157A-Y1159Acablekitstoconnectfrom
distribution boards to switches and attenuators.
Y1150A34945EXTdistributionboardfor8N181xSPDTswitchesY1151A34945EXTdistributionboardfortwo87104x/106xL7x0xxmultiportor87406B
matrix switches
Y1152A34945EXTdistributionboardforone87204x/206xor87606Bswitchand
twoN181xswitchesY1153A34945EXTdistributionboardfortwo84904/5/6/7/8or8494/5/6stepattenuatorsY1154A34945EXTdistributionboardfortwo87222,L7222Ctransferswitchesandsix
N181xSPDTswitchesY1155A 34945EXT distribution board w/ generic screw terminals for driving 16 switch coils
Y1157A9-to-10pincablekitforY1150A,Y1152A,Y1154A-suppliestobuild4cablesY1158A 10-to-10/10-to-14 pin cable kit for Y1153A, Y1154A - supplies to build 2 cables
Y1159A
16-to-16 pin cable kit for Y1150A/51A/52A/53A/54A/55A - supplies to build 2 cables
Thermocouples/thermistors
34307A10packofJtypethermocouples34308A 5 pack of 10 k thermistors
For additional information please visit: http://www.agilent.com/find/34980a
[1] Module specifications include terminal block; performance may be degraded
when using cables or connector kits Connector kit
Standard Dsub cable
High-density screw terminal block
34934A High-density configuration block
For more information on Agilent Technologies’ products,
applications or services, please contact your local Agilent office.
The complete list is available at: www.agilent.com/find/contactus
Americas
Canada(877)8944414Brazil(11)41973500Mexico 01800 5064 800
United States (800) 829 4444
Asia Pacific
Australia 1 800 629 485
China 800 810 0189
Hong Kong 800 938 693
India 1 800 112 929
Japan 0120 (421) 345
Korea0807690800Malaysia 1 800 888 848
Singapore18003758100Taiwan0800047866OtherAPCountries(65)3758100
Europe & Middle East
Belgium32(0)24049340Denmark4570131515Finland 358 (0) 10 855 2100
France0825010700* *0.125 €/minute
Germany49(0)70314646333
Ireland 1890 924 204
Israel972-3-9288-504/544Italy 39 02 92 60 8484
Netherlands31(0)205472111Spain 34 (91) 631 3300
Sweden 0200-88 22 55
UnitedKingdom44(0)1189276201For other unlisted Countries: www.agilent.com/find/contactus
(BP-3-1-13)
Product specifications and descriptions in this document subject
to change without notice.
www.agilent.com
www.agilent.com/find/modular
www.agilent.com/find/34980a
The Modular Tangram
The four-sided geometric symbol that appears in this document is
called a tangram. The goal of this seven-piece puzzle is to create
identifiable shapes—from simple to complex. As with a tangram,
the possibilities may seem infinite as you begin to create a new
test system. With a set of clearly defined elements—hardware,
software—Agilent can help you create the system you need,
from simple to complex.
TM
www.pxisa.org
Agilent Advantage Services is committed to your
success throughout your equipment’s
lifetime.
www.axiestandard.org
© Agilent Technologies, Inc. 2013
Printed in USA, March 28, 2013
5989-1437ENAgilent Solutions Partners
www.agilent.com/find/solutionspartners
Challenge the Boundaries of Test
Agilent Modular Products
myAgilent
myAgilent
www.agilent.com/find/myagilent
www.agilent.com/find/advantageservices
www.agilent.com/find/threeyearwarranty
3-Year Warranty
www.lxistandard.org
PICMG and the PICMG logo, CompactPCI and the CompactPCI logo,
AdvancedTCA and the AdvancedTCA logo are US registered trademarks
of the PCI Industrial Computers Manufacturers Group.“PCIe” and “PCI
EXPRESS”areregisteredtrademarksand/orservicemarksofPC-SIG.Microsoft,Windows,VisualStudio,VisualC++,VisualC#,andVisualBasicareeitherregisteredtrademarkortrademarksofMicrosoftCorporation in the United States and/or other countries.
www.agilent.com/quality
Quality Management SystemQuality Mana
g
ement Sy
s
ISO 9001:2008
Agilent Electronic Measurement Group
DEKRA Certified