SMU INSTRUMENTS
www.keithley.com
1.888.KEITHLEY (U.S. only)
A Greater Measure of Confidence
Keithley’s Series 2400 Source Measure Unit (SMU) Instruments
are designed specifically for test applications that demand tightly
coupled sourcing and measurement. All SourceMeter models pro-
vide precision voltage and current sourcing as well as measure-
ment capabilities. Each SourceMeter SMU instrument is both
a highly stable DC power source and a true instrument-grade
6½-digit multimeter. The power source characteristics include
low noise, precision, and readback. The multimeter capabilities
include high repeatability and low noise. The result is a compact,
single-channel, DC parametric tester. In operation, these instru-
ments can act as a voltage source, a current source, a voltage
meter, a current meter, and an ohmmeter. Manufacturers of
components and modules for the communications, semiconduc-
tor, computer, automotive, and medical industries will find the
SourceMeter SMU instruments invaluable for a wide range of
characterization and production test applications.
Advantages of a Tightly Integrated Instrument
By linking source and measurement circuitry in a single unit,
these instruments offer a variety of advantages over systems
configured with separate source and measurement instruments.
For example, they minimize the time required for test station
development, setup, and maintenance, while lowering the overall
cost of system ownership. They simplify the test process itself
by eliminating many of the complex synchronization and connection issues associated with using
multiple instruments. And, their compact half-rack size conserves precious “real estate” in the test
rack or bench.
Power of Five Instruments in One (IV Source, IVR Measure)
The tightly coupled nature of a SourceMeter SMU instrument provides many advantages over solu-
tions configured from separate instruments, such as a precision power supply and a digital multime-
ter. For example, it provides faster test times by reducing GPIB traffic and simplifies the remote pro-
gramming interface. It also protects the device under test from damage due to accidental overloads,
thermal runaway, etc. Both the current and voltage source are programmable with readback to help
maximize device measurement integrity. If the readback reaches a programmed compliance limit,
then the source is clamped at the limit, providing fault protection.
Five instruments in one
(IV Source, IVR Measure)
Seven models: 20100W DC,
1000W pulsed, 1100V to 1µV,
10A to 10pA
Source and sink (4-quadrant)
operation
0.012% basic measure accuracy
with 6½-digit resolution
2-, 4-, and 6-wire remote
V-source and measure sensing
1700 readings/second at
digits via GPIB
Pass/Fail comparator for fast
sorting/binning
Available high speed sense lead
contact check function
Programmable DIO port for
automation/handler/prober
control (except Model 2401)
Standard SCPI GPIB, RS-232 and
Keithley Trigger Link interfaces
Keithley LabTracer 2.0 I-V curve
tracing application software
(download)
ACCESSORIES AVAILABLE
TEST LEADS AND PROBES
1754 2-Wire Universal 10-Piece Test Lead Kit
5804 Kelvin (4-Wire) Universal 10-Piece Test Lead Kit
5805 Kelvin (4-Wire) Spring-Loaded Probes
5808 Low Cost Single-pin Kelvin Probe Set
5809 Low Cost Kelvin Clip Lead Set
8607 2-Wire, 1000V Banana Cables, 1m (3.3 ft)
CA-18-1 Shielded Dual Banana Cable, 1.2m (4 ft)
SWITCHING HARDWARE
7001 Two-Slot Switch System
7002 Ten-Slot Switch System
7019-C 6-Wire Ohms Switch Card
7053 High-Current Switch Card
CABLES/ADAPTERS
7007-1 Shielded GPIB Cable, 1m (3.3 ft)
7007-2 Shielded GPIB Cable, 2m (6.6 ft)
7009-5 RS-232 Cable
8620 Shorting Plug
COMMUNICATION INTERFACE
KPCI-488LPA IEEE-488 Interface/Controller for the PCI Bus
KUSB-488B IEEE-488 USB-to-GPIB Interface Adapter
TRIGGERING AND CONTROL
2499-DIGIO Digital I/O Expander Assembly
(not for Model 2401)
8501-1 Trigger Link Cable, DIN-to-DIN, 1m (3.3 ft)
8501-2 Trigger Link Cable, DIN-to-DIN, 2m (6.6 ft)
8502 Trigger Link to BNC Breakout Box
8503 Trigger Link Cable, DIN-to-Dual BNC, 1m (3.3 ft)
8505 Male to 2-Female Y-DIN Cable for Trigger Link
RACK MOUNT KITS
4288-1 Single Fixed Rack Mount Kit
4288-2 Dual Fixed Rack Mount Kit
4288-4 Dual Fixed Rack Mount Kit
4288-5 Shelf Type Side by Side Rack Mounting Kit
4288-9 Dual Fixed Rack Mounting Kit
SOFTWARE
LabTracer 2.0 Curve Tracing Software (downloadable)
Series 2400
SourceMeter® SMU Instruments
Tightly coupled precision sourcing and measurement
Tightly coupled precision sourcing and measurement
SMU INSTRUMENTS
A Greater Measure of Confidence
www.keithley.com
1.888.KEITHLEY (U.S. only)
Ordering Information
2400 200V, 1A, 20W
SourceMeter SMU
Instrument
2400-C 200V, 1A, 20W
SourceMeter SMU
Instrument with Contact
Check
2401 20V, 1A, 20W SourceMeter
SMU Instrument
2410 1100V, 1A, 20W
SourceMeter SMU
Instrument
2410-C 1100V, 1A, 20W
SourceMeter SMU
Instrument with Contact
Check
2420 60V, 3A, 60W SourceMeter
SMU Instrument
2420-C 60V, 3A, 60W SourceMeter
SMU Instrument with
Contact Check
2425 100V, 3A, 100W
SourceMeter SMU
Instrument
2425-C 100V, 3A, 100W
SourceMeter SMU
Instrument with Contact
Check
2430 100V, 10A, 1000W
Pulse Mode SourceMeter
SMU Instrument
2430-C 100V, 10A, 1000W
Pulse Mode SourceMeter
SMU Instrument with
Contact Check
2440 40V, 5A, 50W SourceMeter
SMU Instrument
2440-C 40V, 5A, 50W SourceMeter
SMU Instrument with
Contact Check
Accessories Supplied
Model 8605 Test Leads
LabVIEW Software Driver
(downloadable)
LabTracer Software
(downloadable)
Local
Remote
Remote
Local
DUT
IN/OUT HI
SENSE HI
SENSE LO
IN/OUT LO
Imeter
Isource
Vmeter/Compliance
Local
Remote
Remote
Local
DUT
IN/OUT HI
SENSE HI
SENSE LO
IN/OUT LO
Imeter/Compliance
Vsource Vmeter
Feedback to
Adjust Vsource
Source IMeasure V, I, or W configuration Source V–Measure I, V, or W configuration
I-V Characteristics
All SourceMeter SMU instruments provide four-quadrant operation. In the first and third quadrants
they operate as a source, delivering power to a load. In the second and fourth quadrants they oper-
ate as a sink, dissipating power internally. Voltage, current, and resistance can be measured during
source or sink operation.
Series 2400
SourceMeter® SMU Instruments
+1A
–1A
+100mA
+20V–20V +200V
–200V
–100mA
2400
only
2400
only
+1A
–1A
+100mA
+20V–20V +200V
–200V
–100mA
+1A
–1A
+200mA
+20V–20V +200V
–200V
–100mA
+20mA
–20mA
+1100V–1100V
+1A
+20V–20V
–1A
+100mA
–100mA
+3A
–60V +60V
–3A
+1A
+60
–100mA
+20
–20–60+100V
–100V
+3A
+100mA
–1A
–3A
+1A
+60
–100mA
+20–20–60+100V
+3A
+100mA
+10A
–1A
–3A
–10A
–100V
5A
3A
100mA
–10V +10V
–100mA
–3A
–5A
–40V +40V
1A
–1A
Duty cycle
limited
Duty cycle
limited
Duty cycle
limited
Duty cycle limitedDuty cycle limited
Duty cycle limited
Duty cycle limited
Pulse mode only
Model 2400
SourceMeter
SMU Instrument
Series 2400 SourceMeter SMU Instruments
Model 2410
High-Voltage
SourceMeter
SMU Instrument
Model 2430
1kW Pulse Mode
SourceMeter
SMU Instrument
Model 2440
5A SourceMeter
SMU Instrument
Model 2420
3A SourceMeter
SMU Instrument
Model 2425
100W SourceMeter
SMU Instrument
Model 2401
Low-Voltage
SourceMeter
SMU Instrument
Tightly coupled precision sourcing and measurement
Tightly coupled precision sourcing and measurement
SMU INSTRUMENTS
www.keithley.com
1.888.KEITHLEY (U.S. only)
A Greater Measure of Confidence
Automation for Speed
A SourceMeter SMU instrument streamlines production testing. It sources voltage or current while
making measurements without needing to change connections. It is designed for reliable operation
in non-stop production environments. To provide the throughput demanded by production applica-
tions, the SourceMeter SMU instrument offers many built-in features that allow it to run complex test
sequences without computer control or GPIB communications slowing things down.
Standard and Custom Sweeps
Sweep solutions greatly accelerate testing with
automation hooks. Three basic sweep waveforms
are provided that can be programmed for single-
event or continuous operation. They are ideal for
I/V, I/R, V/I, and V/R characterization.
Linear Staircase Sweep: Moves from the start
level to the stop level in equal linear steps
Logarithmic Staircase Sweep: Done on a
log scale with a specified number of steps
per decade
Custom Sweep: Allows construction of
special sweeps by specifying the number of
measurement points and the source level at
each point
Up to 1700 readings/second at 4½ digits to
the GPIB bus
5000 readings can be stored in the non-
volatile buffer memory
Built-In Test Sequencer
(Source Memory List)
The Source Memory list provides faster and
easier testing by allowing you to setup and
execute up to 100 different tests that run without
PC intervention.
Stores up to 100 instrument configurations, each containing source settings, measurement
settings, pass/fail criteria, etc.
Pass/fail limit test as fast as 500µs per point
Onboard comparator eliminates the delay caused when sending data to the computer for analysis
Built-in, user definable math functions to calculate derived parameters
Start
Start
Start
Bias Bias
Bias Bias
Bias Bias
User
defined
steps
Stop
Stop
Stop
Linear staircase sweep
Logarithmic staircase sweep
Custom sweep
TYPICAL APPLICATIONS
Devices:
Discrete semiconductor devices
Passive devices
Transient suppression devices
ICs, RFICs, MMICs
Laser diodes, laser diode
modules, LEDs, photodetectors
Circuit protection devices: TVS,
MOV, Fuses, etc.
Airbags
Connectors, switches, relays
High brightness LEDs
(DC and pulse)
Tests:
Leakage
Low voltage/resistances
LIV
IDDQ
I-V characterization
Isolation and trace resistance
Temperature coefficient
Forward voltage, reverse
breakdown, leakage current
DC parametric test
DC power source
HIPOT
Photovoltaic cell efficiency
(source and sink)
Dielectric withstanding
Test Pass/Fail Test If Passes Test If Fails Test
Test 1 Check VF1 at
100mA against
pass/fail limits
Go to Test 2
1. Bin part to bad bin
2. Transmit data to
computer while
handler is placing
new part
3. Return to Test 1
Test 2 Check VF2 at 1A
against pass/fail
limits
Go to Test 3
Test 3 Check leakage
current at –500V
and test against
pass/fail limits
1. Bin part to good bin
2. Transmit readings to
computer while handler
is placing new part
3. Return to Test 1
Example Test Sequence
Test 3
Test 2
V
I
Test 1
I
R
V
F2
V
F1
Series 2400 SourceMeter® SMU Instruments
Tightly coupled precision sourcing and measurement
Tightly coupled precision sourcing and measurement
SMU INSTRUMENTS
A Greater Measure of Confidence
www.keithley.com
1.888.KEITHLEY (U.S. only)
Digital I/O Interface
The digital I/O interface can link a SourceMeter SMU instrument to many
popular component handlers, including Aetrium, Aeco, and Robotronics.
Other capabilities of the interface include:
Tight systems integration for applications such as binning and sorting
Built-in component handler interface
Start of test and end of test signals
5V, 300mA power supply
Optional expander accessory (Model 2499-DIGIO) adds 16 digital I/O lines
The digital I/O interface is available on all Series 2400 SoourceMeter
instruments except the Model 2401.
Trigger Link Interface
All SourceMeter SMU instruments include Keithley’s unique Trigger Link
interface which provides high-speed, seamless communications with many
of Keithley’s other instruments. For example, use the Trigger Link interface
to connect a SourceMeter SMU instrument with a Series 7000 Switching
System for a complete multi-point test solution. With Trigger Link, the
Series 7000 Switching Systems can be controlled by a SourceMeter SMU
instrument during a high-speed test sequence independent of a computer
and GPIB.
Optional Contact Check Function
The Contact Check function makes it simple to verify good connections
quickly and easily before an automated test sequence begins. This elimi-
nates measurement errors and false product failures associated with con-
tact fatigue, breakage, contamination, loose or broken connection, relay
failures, etc. Some capabilities of this function are:
350µs verification and notification process time
The output of the SourceMeter SMU instrument is automatically shut
off after a fault and is not re-activated until good contact is verified,
protecting the device under test from damage and the operator from
potential safety hazards.
3 pass/fail threshold values: 2W, 15W, and 50W
No energy passes through the device under test during the operation.
Enabled either from the front panel or remotely over the GPIB
3 fault notification methods
Unique 6-Wire Ohms Technique
SourceMeter SMU instruments can make standard 4-wire, split Kelvin, and
6-wire, guarded ohms measurements and can be configured for either the
constant current or constant voltage method. The 6-wire ohms technique:
Uses guard and guard sense leads in addition to the 4-wire sense and
source leads.
Locks out parallel current paths when measuring resistor networks or
hybrid circuits to isolate the component under test.
Allows users to configure and plot data easily from Series 2400
SourceMeter SMU instruments, making characterization of two, three,
and four terminal devices a snap.
+
-
I
meter
V
meter
V or I
Source
350µs
Contact Check
(optional)
GUARD
GUARD SENSE
IN/OUT HI
SENSE HI
SENSE LO
IN/OUT LO
Pass
Pass
Fail
Contact check option for 4-wire or 6-wire applications Free LabTracer 2.0 device characterization software (downloadable)
+
-
GUARD
GUARD SENSE
IN/OUT HI
SENSE HI
SENSE LO
IN/OUT LO
DUT
R2
R1
R3
Vmeter
Imeter
Isource
6-Wire Ohms Circuit. All test current flows through R1 because the
high current guard drives the voltage across R2 to 0V.
Series 2400 SourceMeter® SMU Instruments
Tightly coupled precision sourcing and measurement
Tightly coupled precision sourcing and measurement
SMU INSTRUMENTS
www.keithley.com
1.888.KEITHLEY (U.S. only)
A Greater Measure of Confidence
Voltage Accuracy (Local or Remote Sense)
Model Range
Programming
Resolution
Source1
Accuracy (1 Year)
23°C ±5°C
±(% rdg. + volts)
Default
Measurement
Resolution
Measurement2, 3, 4
Accuracy (1 Year)
23°C ±5°C
±(% rdg. + volts)
Output Slew Rate
30%) Source/Sink Limit
2400, 2400-C,
2401
200.000 mV 5 µV 0.02% + 600 µV 1 µV 0.012% + 300 µV
±21 V @ ±1.05 A
±210 V @ ±105 mA*
2.00000 V 50 µV 0.02% + 600 µV 10 µV 0.012% + 300 µV
20.0000 V 500 µV 0.02% + 2.4 mV 100 µV 0.015% + 1.5 mV 0.08 V/µs
200.000 V* 5 mV 0.02% + 24 mV 1 mV 0.015% + 10 mV 0.5 V/µs
2410, 2410-C
200.000 mV 5 µV 0.02% + 600 µV 1 µV 0.012% + 300 µV
±21 V @ ±1.05 A
±1100 V @ ±21 mA
2.00000 V 50 µV 0.02% + 600 µV 10 µV 0.012% + 300 µV
20.0000 V 500 µV 0.02% + 2.4 mV 100 µV 0.015% + 1 mV 0.15 V/µs
1000.00 V 50 mV 0.02% + 100 mV 10 mV 0.015% + 50 mV 0.5 V/µs
2420, 2420-C
200.000 mV 5 µV 0.02% + 600 µV 1 µV 0.012% + 300 µV
±21 V @ ±3.15 A
±63 V @ ±1.05 A
2.00000 V 50 µV 0.02% + 600 µV 10 µV 0.012% + 300 µV
20.0000 V 500 µV 0.02% + 2.4 mV 100 µV 0.015% + 1 mV 0.08 V/µs
60.0000 V 1.5 mV 0.02% + 7.2 mV 1 mV 0.015% + 3 mV 0.14 V/µs
2425, 2425-C
200.000 mV 5 µV 0.02% + 600 µV 1 µV 0.012% + 300 µV
±21 V @ ±3.15 A
±105 V @ ±1.05 A
2.00000 V 50 µV 0.02% + 600 µV 10 µV 0.012% + 300 µV
20.0000 V 500 µV 0.02% + 2.4 mV 100 µV 0.015% + 1 mV 0.08 V/µs
100.0000 V 2.5 mV 0.02% + 12 mV 1 mV 0.015% + 5 mV 0.25 V/µs
2430, 2430-C
200.000 mV 5 µV 0.02% + 600 µV 1 µV 0.012% + 300 µV ±105 V @ ±1.05 A
±105 V @ ±10.5 A
(pulse mode only)
2.00000 V 50 µV 0.02% + 600 µV 10 µV 0.012% + 300 µV
20.0000 V 500 µV 0.02% + 2.4 mV 100 µV 0.015% + 1 mV 0.08 V/µs
100.0000 V 2.5 mV 0.02% + 12 mV 1 mV 0.015% + 5 mV 0.25 V/µs
2440, 2440-C
200.000 mV 5 µV 0.02% + 600 µV 1 µV 0.012% + 300 µV
±10.5 V @ ±5.25 A
±42 V @ ±1.05 A
2.00000 V 50 µV 0.02% + 600 µV 10 µV 0.012% + 300 µV
10.0000 V 500 µV 0.02% + 1.2 mV 100 µV 0.015% + 750 µV 0.08 V/µs
40.0000 V 5 mV 0.02% + 4.8 mV 1 mV 0.015% + 3 mV 0.25 V/µs
*Not available on Model 2401.
TEMPERATURE COEFFICIENT (0°–18°C and 28°–50°C): ±(0.15 × accuracy specification)/°C.
VOLTAGE REGULATION: Line: 0.01% of range. Load: 0.01% of range + 100µV.
OVER VOLTAGE PROTECTION: User selectable values, 5% tolerance. Factory default = none.
CURRENT LIMIT: Bipolar current limit (compliance) set with single value. Min. 0.1% of range.
OVERSHOOT: <0.1% typical (full scale step, resistive load, 10mA range).
ADDITIONAL SOURCE SPECIFICATIONS (All Models)
TRANSIENT RESPONSE TIME: 30µs minimum for the output to recover to its spec. following a
step change in load.
COMMAND PROCESSING TIME: Maximum time required for the output to begin to change
following the receipt of :SOURce:VOLTage|CURRent <nrf> command. Autorange On: 10ms.
Autorange Off: 7ms.
OUTPUT SETTLING TIME: Time required to reach 0.1% of final value after command is pro-
cessed. 10s typical. Resistive load. 10µA to 100mA range.
DC FLOATING VOLTAGE: Output can be floated up to ±250VDC (Model 2440 ±40VDC) from
chassis ground.
REMOTE SENSE: Up to 1V drop per load lead.
COMPLIANCE ACCURACY: Add 0.3% of range and ±0.02% of reading to base specification.
OVER TEMPERATURE PROTECTION: Internally sensed temperature overload puts unit in
standby mode.
RANGE CHANGE OVERSHOOT: Overshoot into a fully resistive 100kW load, 10Hz to 1MHz BW,
adjacent ranges: 100mV typical, except 20V/200V (20V/60V on Model 2420), 20V/100V on Model
2425 and 2430, range boundary, and Model 2440.
MINIMUM COMPLIANCE VALUE: 0.1% of range.
ADDITIONAL PULSE MODE SOURCE SPECIFICATIONS
(2430 and 2430-C only)
MAXIMUM DUTY CYCLE: 8%, hardware limited, 10A range only. All other ranges 100%.
MAXIMUM PULSE WIDTH: 5ms from 90% rising to 90% falling edge, 2.5ms 10A range.
MINIMUM PULSE WIDTH: 150µs.
MINIMUM PULSE RESOLUTION: 50µs typical, 70µs max., limited by system jitter.
SOURCE ACCURACY: Determined by settling time and source range specifications.
OUTPUT SETTLING TIME 0.1%:
800µs typ., source I = 10A into 10W, limited by voltage slew rate.
50s typ., source I = 10A into 1W, limited by voltage slew rate.
OUTPUT SLEW RATE:
Voltage (10W load): 0.25V/µs ±30% on 100V range. 0.08V/µs ±30% on 20V range, 10A range.
Current (0W load): 0.25A/µs ±30% on 100V range. 0.08A/µs ±30% on 20V range, 10A range.
NOTES
1. 2400, 2401, 2410 Only: Specifications valid for continuous output currents below 105mA. For operation above
105mA continuous for >1 minute, derate accuracy 10%/35mA above 105mA.
2. Speed = Normal (1 PLC). For 0.1 PLC, add 0.005% of range to offset specifications, except 200mV, 1A, 10A
ranges, add 0.05%. For 0.01 PLC, add 0.05% of range to offset specifications, except 200mV, 1A, 10A ranges, add
0.5%.
3. Accuracies apply to 2- or 4-wire mode when properly zeroed.
4. In pulse mode, limited to 0.1 PLC measurement.
Series 2400 SourceMeter® SMU Instruments
Series 2400 condensed specifications
Series 2400 condensed specifications
SMU INSTRUMENTS
A Greater Measure of Confidence
www.keithley.com
1.888.KEITHLEY (U.S. only)
Current Accuracy (Local or Remote Sense)
Model Range
Programming
Resolution
Source 1, 3
Accuracy
(1 Year)
23°C ±5°C
±(% rdg. + amps)
Default Measurement
Resolution
Measurement 5, 6, 7
Accuracy (1 Year)
23°C ±5°C
±(% rdg. + amps) Source/Sink Limit
2400, 2400-C,
2401
1.00000 µA 50 pA 0.035% + 600 pA 10 pA 0.029% + 300 pA
±1.05A @ ±21 V
±105 mA @ ±210 V8
10.0000 µA 500 pA 0.033% + 2 nA 100 pA 0.027% + 700 pA
100.000 µA 5 nA 0.031% + 20 nA 1 nA 0.025% + 6 nA
1.00000 mA 50 nA 0.034% + 200 nA 10 nA 0.027% + 60 nA
10.0000 mA 500 nA 0.045% + 2 µA 100 nA 0.035% + 600 nA
100.000 mA 5 µA 0.066% + 20 µA 1 µA 0.055% + 6 µA
1.00000 A2 50 µA 0.27 % + 900 µA 10 µA 0.22 % + 570 µA
2410, 2410-C
1.00000 µA 50 pA 0.035% + 600 pA 10 pA 0.029% + 300 pA
±1.05A @ ±21 V
±21 mA @ ±1100 V
10.0000 µA 500 pA 0.033% + 2 nA 100 pA 0.027% + 700 pA
100.000 µA 5 nA 0.031% + 20 nA 1 nA 0.025% + 6 nA
1.00000 mA 50 nA 0.034% + 200 nA 10 nA 0.027% + 60 nA
20.0000 mA 500 nA 0.045% + 4 µA 100 nA 0.035% + 1.2 µA
100.000 mA 5 µA 0.066% + 20 µA 1 µA 0.055% + 6 µA
1.00000 A2 50 µA 0.27 % + 900 µA 10 µA 0.22 % + 570 µA
2420, 2420-C
10.0000 µA 500 pA 0.033% + 2 nA 100 pA 0.027% + 700 pA
±3.15A @ ±21 V
±1.05 A @ ±63 V
100.000 µA 5 nA 0.031% + 20 nA 1 nA 0.025% + 6 nA
1.00000 mA 50 nA 0.034% + 200 nA 10 nA 0.027% + 60 nA
10.0000 mA 500 nA 0.045% + 2 µA 100 nA 0.035% + 600 nA
100.000 mA 5 µA 0.066% + 20 µA 1 µA 0.055% + 6 µA
1.00000 A2 50 µA 0.067% + 900 µA 10 µA 0.066% + 570 µA
3.00000 A2 50 µA 0.059% + 2.7 mA 10 µA 0.052% + 1.71 mA
2425, 2425-C
10.0000 µA 500 pA 0.033% + 2 nA 100 pA 0.027% + 700 pA
±3.15A @ ±21 V
±1.05 A @ ±105 V
100.000 µA 5 nA 0.031% + 20 nA 1 nA 0.025% + 6 nA
1.00000 mA 50 nA 0.034% + 200 nA 10 nA 0.027% + 60 nA
10.0000 mA 500 nA 0.045% + 2 µA 100 nA 0.035% + 600 nA
100.000 mA 5 µA 0.066% + 20 µA 1 µA 0.055% + 6 µA
1.00000 A2 50 µA 0.067% + 900 µA 10 µA 0.060% + 570 µA
3.00000 A2 50 µA 0.059% + 2.8 mA 10 µA 0.052% + 1.71 mA
2430, 2430-C
10.0000 µA 500 pA 0.033% + 2 nA 100 pA 0.027% + 700 pA
±1.05A @ ±105 V
±10.5 A @ ±105 V
(pulse mode only)
100.000 µA 5 nA 0.031% + 20 nA 1 nA 0.025% + 6 nA
1.00000 mA 50 nA 0.034% + 200 nA 10 nA 0.027% + 60 nA
10.0000 mA 500 nA 0.045% + 2 µA 100 nA 0.035% + 600 nA
100.000 mA 5 µA 0.066% + 20 µA 1 µA 0.055% + 6 µA
1.00000 A 50 µA 0.067% + 900 µA 10 µA 0.060% + 570 µA
3.00000 A2
10.00000 A4
500 µA
500 µA
0.059% + 2.8 mA
0.089% + 5.9 mA
10 µA
10 µA
0.052% + 1.71 mA
0.082% + 1.71 mA
2440, 2440-C
10.0000 µA 500 pA 0.033% + 2 nA 100 pA 0.027% + 700 pA
±5.25A @ ±10.5 V
±1.05 A @ ±42 V
100.000 µA 5 nA 0.031% + 20 nA 1 nA 0.025% + 6 nA
1.00000 mA 50 nA 0.034% + 200 nA 10 nA 0.027% + 60 nA
10.0000 mA 500 nA 0.045% + 2 µA 100 nA 0.035% + 600 nA
100.000 mA 5 µA 0.066% + 20 µA 1 µA 0.055% + 6 µA
1.00000 A 50 µA 0.067% + 900 µA 10 µA 0.060% + 570 µA
5.00000 A 50 µA 0.10 % + 5.4 mA 10 µA 0.10 % + 3.42 mA
TEMPERATURE COEFFICIENT (0°–18°C and 28°–50°C): ±(0.15 × accuracy specification)/°C.
CURRENT REGULATION: Line: 0.01% of range. Load: 0.01% of range (except Model 2440
5A range 0.05%) + 100pA.
VOLTAGE LIMIT: Bipolar voltage limit (compliance) set with single value. Min. 0.1% of range.
OV ERSHOOT: <0.1% typical (1mA step, RL = 10kW, 20V range for Model 2400, 2401, 2410, 2420,
2425, 2430), (10V range for Model 2440).
CONTACT CHECK SPECIFICATIONS (requires -C version)
(Not available for Model 2401)
SPEED: 350µs for verification and notification.
CONTACT CHECK: 2 W 15 W 50 W
No contact check failure <1.00 W <13.5 W <47.5 W
Always contact check failure >3.00 W >16.5 W >52.5 W
NOTES
1. 2400, 2401, 2410 Only: Specifications valid for continuous output currents below 105mA. For operation above
105mA continuous for >1 minute, derate accuracy 10%/35mA above 105mA.
2. Full operation (1A) regardless of load to 30°C (50°C for Model 2420 and 2440). Above 30°C (50°C for Model
2420 and 2440) ambient, derate 35mAC and prorate 35mA/W load. 4-wire mode. For current sink operation
on 1A, 3A, or 5A ranges, maximum continuous power is limited to approximately 1/2 rated power or less,
depending on current, up to 30°C ambient. See power equations in the User’s Manual to calculate allowable
duty cycle for specific conditions.
3. For sink mode, 1µA to 100mA range, accuracy is:
Model 2400, 2401: ±(0.15% + offset*4). Models 2410, 2420, 2425, 2430, 2440: ±(0.5% + offset*3).
For 1A range, accuracy is:
Model 2400, 2401: ±(1.5% + offset*8). Models 2410, 2420, 2425, 2430, 2440: ±(1.5% + offset*3).
4. 10A range only in pulse mode. Limited to 2.5ms pulse width maximum. 10% duty cycle maximum.
5. Speed = Normal (1 PLC). For 0.1 PLC, add 0.005% of range to offset specifications, except 200mV, 1A, 10A
ranges, add 0.05%. For 0.01 PLC, add 0.05% of range to offset specifications, except 200mV, 1A, 10A ranges,
add 0.5%.
6. Accuracies apply to 2- or 4-wire mode when properly zeroed.
7. In pulse mode, limited to 0.1 PLC measurement.
8. Model 2400 and 2400-C only.
Series 2400 SourceMeter® SMU Instruments
Series 2400 condensed specifications
Series 2400 condensed specifications
SMU INSTRUMENTS
www.keithley.com
1.888.KEITHLEY (U.S. only)
A Greater Measure of Confidence
NOTES
1. Speed = Normal (1 PLC). For 0.1 PLC, add 0.005% of range to offset specifications, except 200mV, 1A, 10A ranges, add 0.05%. For
0.01 PLC, add 0.05% of range to offset specifications, except 200mV, 1A, 10A ranges, add 0.5%.
2. Accuracies apply to 2- or 4-wire mode when properly zeroed.
3. Manual ohms only – except 2420, 2425, 2430, 2440 for 2W range and 2400, 2401, or 2410 for 200MW range.
4. Source readback enabled, offset compensation ON. Also available on 2410, 2420, 2425, 2430, and 2440 with similar accuracy
enhancement.
5. In pulse mode, limited to 0.1 PLC measurement.
6. Except 2440; default test current is 5µA.
7. Except 2440; default test current is 0.5µA.
TEMPERATURE COEFFICIENT (0°–18°C and 28°–50°C): ±(0.15 × accuracy
specification)/°C.
SOURCE I MODE, MANUAL OHMS: Total uncertainty = I source accuracy + V meas-
ure accuracy (4-wire remote sense).
SOURCE V MODE, MANUAL OHMS: Total uncertainty = V source accuracy + I meas-
ure accuracy (4-wire remote sense).
6-WIRE OHMS MODE: Available using active ohms guard and guard sense. Max.
Guard Output Current: 50mA (except 1A range). Accuracy is load dependent.
Refer to White Paper no. 2033 for calculation formula.
GUARD OUTPUT IMPEDANCE: <0.1W in ohms mode.
Series 2400 SourceMeter® SMU Instruments
SERVICES AVAILABLE
2400-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2400-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2401-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2410-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2410-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2420-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2420-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2425-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2425-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2430-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2430-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2440-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
2440-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
C/2400-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2400, 2400-C, 2400-LV*
C/2401-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Model 2401*
C/2410-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2410, 2410-C*
C/2420-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2420, 2420-C*
C/2425-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2425, 2425-C*
C/2430-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2430, 2430-C*
C/2440-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2440, 2440-C*
TRN-2400-1-C Course: Unleashing the Power of Your SourceMeter SMU Instrument
*Not available in all countries
Resistance Measurement Accuracy (Local or Remote Sense)1, 2, 5
Range
Default
Resolution
Default Test
Current
2400, 2401, 2410
Default Test
Current
2420, 2425,
2430, 2440
Normal Accuracy (23°C ±C)
1 Year, ±(% rdg. + ohms)
Enhanced Accuracy
(23°C ±5°C)4
1 Year, ±(% rdg. + ohms)
2400, 2401 2410 2420, 2425, 2430, 2440 2400, 2401
<0.20000 W3 Source IACC + Meas. VACC Source IACC + Meas. VACC Source IACC + Meas. VACC Source IACC + Meas. VACC
2.00000 W310 µW1 A Source IACC + Meas VACC Source IACC + Meas. VACC 0.17% + 0.0003 WSource IACC + Meas. VACC
20.0000 W100 µW100 mA 100 mA 0.10% + 0.003 W0.11% + 0.006 W0.10% + 0.003 W0.07% + 0.001 W
200.000 W1 mW10 mA 10 mA 0.08% + 0.03 W0.09% + 0.1 W0.08% + 0.03 W0.05% + 0.01 W
2.00000 kW10 mW1 mA 1 mA 0.07% + 0.3 W0.08% + 0.6 W0.07% + 0.3 W0.05% + 0.1 W
20.0000 kW100 mW100 µA 100 µA 0.06% + 3 W0.07% + 6 W0.06% + 3 W0.04% + 1 W
200.000 kW 1 W10 µA 10 µA 0.07% + 30 W0.07% + 60 W0.07% + 30 W0.05% + 10 W
2.00000 MW6 10 W1 µA 1 µA 0.11% + 300 W0.12% + 600 W0.11% + 300 W0.05% + 100 W
20.0000 MW7 100 W1 µA 1 µA 0.11% + 1 kW0.12% + 2.4 kW0.11% + 1 kW0.05% + 500 W
200.000 MW31 kW100 nA 0.66% + 10 kW0.66% + 24 kWSource IACC + Meas. VACC 0.35% + 5 kW
>200.000 MW3 Source IACC + Meas. VACC Source IACC + Meas. VACC Source IACC + Meas. VACC Source IACC + Meas. VACC
Series 2400 condensed specifications
Series 2400 condensed specifications
SMU INSTRUMENTS
A Greater Measure of Confidence
www.keithley.com
1.888.KEITHLEY (U.S. only)
GENERAL
System Speeds
MEASUREMENT1
MAXIMUM RANGE CHANGE RATE: 75/second.
MAXIMUM MEASURE AUTORANGE TIME: 40ms (fixed source).2
Sweep Operation3 Reading Rates (rdg./second) for 60Hz (50Hz):
Measure Source-Measure
Source-Measure5
Pass/Fail Test4, 5 Source-Memory4
Speed NPLC/Trigger Origin To Mem. To GPIB To Mem. To GPIB To Mem. To GPIB To Mem. To GPIB
Fast 0.01 / internal 2081 (2030) 1754 1551 (1515) 1369 902 (900) 981 165 (162) 165
IEEE-488.1 Mode 0.01 / external 1239 (1200) 1254 1018 (990) 1035 830 (830) 886 163 (160) 163
Fast 0.01 / internal 2081 (2030) 1198 (1210) 1551 (1515) 1000 (900) 902 (900) 809 (840) 165 (162) 164 (162)
IEEE-488.2 Mode 0.01 / external 1239 (1200) 1079 (1050) 1018 (990) 916 (835) 830 (830) 756 (780) 163 (160) 162 (160)
Medium 0.10 / internal 510 (433) 509 (433) 470 (405) 470 (410) 389 (343) 388 (343) 133 (126) 132 (126)
IEEE-488.2 Mode 0.10 / external 438 (380) 438 (380) 409 (360) 409 (365) 374 (333) 374 (333) 131 (125) 131 (125)
Normal 1.00 / internal 59 (49) 59 (49) 58 (48) 58 (48) 56 (47) 56 (47) 44 (38) 44 (38)
IEEE-488.2 Mode 1.00 / external 57 (48) 57 (48) 57 (48) 57 (47) 56 (47) 56 (47) 44 (38) 44 (38)
Single Reading Operation Reading Rates (rdg./second) for 60Hz (50Hz):
Speed NPLC/Trigger Origin
Measure
To GPIB
Source-Measure5
To GPIB
Source-Measure Pass/Fail Test4,5
To GPIB
Fast (488.1) 0.01 / internal 537 140 135
Fast (488.2) 0.01 / internal 256 (256) 79 (83) 79 (83)
Medium (488.2) 0.10 / internal 167 (166) 72 (70) 69 (70)
Normal (488.2) 1.00 / internal 49 (42) 34 (31) 35 (30)
Component for 60Hz (50Hz):4, 6
Speed NPLC/Trigger Origin Measure To GPIB Source Pass/Fail Test
Source-Measure Pass/Fail Test5, 7
To GPIB
Fast 0.01 / external 1.04 ms (1.08 ms) 0.5 ms (0.5 ms) 4.82 ms (5.3 ms)
Medium 0.10 / external 2.55 ms (2.9 ms) 0.5 ms (0.5 ms) 6.27 ms (7.1 ms)
Normal 1.00 / external 17.53 ms (20.9 ms) 0.5 ms (0.5 ms) 21.31 ms (25.0 ms)
1 Reading rates applicable for voltage or current measurements. Auto zero off, autorange off, filter off, display off,
trigger delay = 0, and binary reading format.
2 Purely resistive lead. 1µA and 10µA ranges <65ms.
3 1000 point sweep was characterized with the source on a fixed range.
4
Pass/Fail test performed using one high limit and one low math limit.
5 Includes time to re-program source to a new level before making measurement.
6 Time from falling edge of START OF TEST signal to falling edge of END OF TEST signal.
7 Command processing time of :SOURce:VOLTage|CURRent:TRIGgered <nrf> command not included.
Noise Rejection:
NPLC NMRR CMRR
Fast 0.01 80 dB
Medium 0.1 80 dB
Slow 160 dB 100 dB1
1 Except lowest 2 current ranges = 90dB.
LOAD IMPEDANCE: Stable into 20,000pF typical.
COMMON MODE VOLTAGE: 250V DC (40V DC for Model 2440).
COMMON MODE ISOLATION: >109W, <1000pF.
OVERRANGE: 105% of range, source and measure.
MAX. VOLTAGE DROP BETWEEN INPUT/OUTPUT AND SENSE TERMINALS: 5V.
MAX. SENSE LEAD RESISTANCE: 1MW for rated accuracy.
SENSE INPUT IMPEDANCE: >1010W.
GUARD OFFSET VOLTAGE: <150µV, typical (300µV for Models 2430, 2440).
SOURCE OUTPUT MODES:
Pulse (Model 2430 only)
Fixed DC level
Memory List (mixed function)
Stair (linear and log)
MEMORY BUFFER: 5,000 readings @ 5 digits (two 2,500 point buffers). Includes selected measured
value(s) and time stamp. Lithium battery backup (3 yr+ battery life).
SOURCE MEMORY LIST: 100 points max.
PROGRAMMABILITY: IEEE-488 (SCPI-1995.0), RS-232, 5 user-definable power-up states plus
factory default and *RST.
DIGITAL INTERFACE:
Interlock: Active low input.
Handler Interface: Start of test, end of test, 3 category bits. +5V@ 300mA supply.
Not available on Model 2401.
Digital I/O: 1 trigger input, 4 TTL/Relay Drive outputs (33V @ 500mA, diode clamped).
Not available on Model 2401.
POWER SUPPLY: 100V to 240V rms, 5060Hz (automatically detected at power up). Model
2400, 2401: 190VA. Model 2410: 210VA. Model 2420: 220VA. Model 2425, 2430: 250VA.
Model 2440: 240VA.
COOLING: Model 2401: Convection. Model 2410, 2420, 2425, 2430, 2440: Forced air,
variable speed.
EMC: Conforms to European Union Directive 89/336/EEC, EN 61326-1.
SAFETY: UL listed to UL 61010B-1:2003: Conforms to European Union Low Voltage Directive.
VIBRATION: MIL-PRF-28800F Class 3 Random.
WARM-UP: 1 hour to rated accuracies.
DIMENSIONS: 89mm high × 213mm wide × 370mm deep (3½ in × 838 in × 14916 in). Bench
Configuration (with handle and feet):104mm high × 238mm wide × 370mm deep (418 in ×
938 in × 14916 in).
WEIGHT: 3.21kg (7.08 lbs) (Model 2425, 2430, 2440: 4.1kg, 9.0 lbs).
ENVIRONMENT: Operating: 0°–50°C, 70% R.H. up to 35°C. Derate 3% R.H./°C, 35°–50°C.
Storage: –25°C to 65°C.
Series 2400 SourceMeter® SMU Instruments
NOTES
Series 2400 condensed specifications
Series 2400 condensed specifications