SWITCHES - SPDT - SMT
1
HMC270AMS8GE
v02.0316
GAAS MMIC SPDT SWITCH
NON-REFLECTIVE, DC -8 GHz
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
General Description
Features
Functional Diagram
Broadband Performance: DC - 8 GHz
Very High Isolation: 45 dB @ 6 GHz
Non-Reective Design
Low Cost MSOP-8 Package: 14.8 mm2
Electrical Specications, TA = +25° C, With 0/-5V Control, 50 Ohm system
Typical Applications
The HMC270AMS8GE is ideal for
DC - 8.0 GHz applications:
• CATV
• MMDS & WirelessLAN
• Wireless Local Loop
The HMC270AMS8GE are broad-band non-reective
GaAs SPDT switches in 8 lead MSOP grounded base
surface mount plastic packages. Covering DC to 8
GHz, the switch offers excellent isolation from 70 to
35 dB. The negative control voltage of -5 volts allows
operation down to DC. If positive control is required
along with high isolation, see the DC to 3.5 GHz
HMC284AMS8GE non-reective SPDT.
Parameter Frequency Min. Ty p . Max. Units
Insertion Loss
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
0.8
1. 0
2.4
1. 2
1. 7
2.8
dB
dB
dB
Isolation
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
43
42
37
28
53
52
45
33
dB
dB
dB
dB
Return Loss “On State”
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
11
9
7
14
12
10
dB
dB
dB
Return Loss RF1, RF2 “Off State”
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
15
13
10
20
18
15
dB
dB
dB
Input Power for 1 dB Compression 0.5 - 8.0 GHz 24 28 dBm
Input third Order Intercept
(Two-Tone Input Power = +10 dBm Each Tone) 0.5 - 8.0 GHz 37 42 dBm
Switching Characteristics DC - 8.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
15
50
ns
ns
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
SWITCHES - SPDT - SMT
2
HMC270AMS8GE
v02.0316
GAAS MMIC SPDT SWITCH
NON-REFLECTIVE, DC -8 GHz
Return Loss
Insertion Loss Isolation
0.1 and 1 dB Input Compression Point
Input Third Order Intercept Point Control Voltages
State Bias Condition
Low 0 to -0.2V @ 0.5 uA Typ.
High -5V @ 2 uA Typ. to -7V @ 15 uA Typ (±0.5 Vdc)
-5
-4
-3
-2
-1
0
0123456789
RF1 RF2
INSERTION LOSS (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
0123456789
RF1 RF2
ISOLATION (dB)
FREQUENCY (GHz)
-25
-20
-15
-10
-5
0
0123456789
RFC
RF1, 2 On
RF1,2 Off
RETURN LOSS (dB)
FREQUENCY (GHz)
18
22
26
30
34
0123456789
1 dB Compression Point
0.1 dB Compression Point
COMPRESSION POINT (dBm)
FREQUENCY (GHz)
25
30
35
40
45
50
55
0123456789
THIRD ORDER INTERCEPT (dBm)
FREQUENCY (GHz)
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
SWITCHES - SPDT - SMT
3
HMC270AMS8GE
v02.0316
GAAS MMIC SPDT SWITCH
NON-REFLECTIVE, DC -8 GHz
Truth Table
Control Input Signal Path State
A B RFC to RF1 RFC to RF2
High Low ON OFF
Low High OFF ON
Absolute Maximum Ratings
Outline Drawing
Max RF Input Power, Vctl = -5V
Insertion Loss Path
Terminated Path
+29 dBm
25.5 dBm
Control Voltage Range +0.5 to -7 Vdc
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
Thermal Resistance
Insertion Loss Path
Terminated Path
143 °C/W
183 °C/W
ESD Sensitivity (HBM) Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Part Number Package Body Material Lead Finish MSL Rating Package Marking [2]
HMC270AMS8GE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [1] H270A
XXXX
[1] Max peak reow temperature of 260 °C
[2] 4-Digit lot number XXXX
Package Information
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
SWITCHES - SPDT - SMT
4
HMC270AMS8GE
v02.0316
GAAS MMIC SPDT SWITCH
NON-REFLECTIVE, DC -8 GHz
Suggested Driver Circuit
Simple driver using inexpensive standard logic ICs provides fast switching using minimum DC current while translating from
standard positive voltage TTL or CMOS logic to negative voltage GaAs IC logic.
Pin Descriptions
Pin Number Function Description Interface Schematic
1 A See truth table and control voltage table.
2 B See truth table and control voltage table.
3, 5, 8 RFC, RF1, RF2 This pin is DC coupled and matched to 50 Ohm. Blocking
capacitors are required if RF line potential is not equal to 0V.
4, 6, 7 GND This pin must be connected to RF/DC ground.
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
SWITCHES - SPDT - SMT
5
HMC270AMS8GE
v02.0316
GAAS MMIC SPDT SWITCH
NON-REFLECTIVE, DC -8 GHz
Evaluation PCB
List of Materials for Evaluation PCB EV1HMC270AMS8G[1]
The circuit board used in the application should
be generated with proper RF circuit design tech-
niques. Signal lines at the RF ports should have
50 Ohm impedance and the package ground leads
and exposed ground paddle should be connected
directly to the ground plane similar to that shown
above. The evaluation circuit board shown above
is available from Analog Devices Inc. upon request.
Item Description
J1 - J3 PCB Mount SMA RF Connector
J4 - J5 DC Pin
R1 - R2 100 Ohm Resistor, 0402 Pkg.
U1 HMC270AMS8GE
SPDT Switch
PCB [2] 104518 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350