Application Note
S2079
Drivers for GaAs FET Switches and Digital Attenuators
Rev. V5
Additional Notes:
Appendix
Application Note M537, GaAs MMIC Based Control
Components with Integral Drivers defines performance
parameters for switches and attenuators.
Popular M/A-COM GaAs FET switches
In the following tables, switching speed is the time from
the 50 percent point of the control voltage rise or fall to
the occurrence of 90 percent (on) or 10 percent (off) of
the switched RF level.
1. See Application Note M517, MASW6010 GaAs
SPDT Switch Performance and Driver Circuit
Techniques for additional information on designing
with the SWD-109 and SWD-119 drivers.
2. For pin assignments and supply voltages for the
SWD-109 and SWD-119 single/quad drivers, see
the SWD-109/119 data sheet, available on the M/A-
COM web site at www.macom.com.
Dual Positive Control, Requires Positive Supply
(Includes pull-up components on-chip)
Switching
Speed
Part Number
Type
Package
3. See Application Note M521, Positive Voltage Control
of GaAs MMIC Control Devices for more information
on floating attenuators above ground potential.
4. See Application Note M539, Drivers for GaAs MMIC
Switches and Digital Attenuators for more
SW-277
SW-349
SW-394
SW-399
SPDT
SPST terminated
SPDT
SOIC-8
SOIC-8
SOIC-8
SOT-26
35 ns
2 μs
36 μs
110 μs
SPST
Single Control, Integral Driver, Requires
Positive And Negative Supplies
information on compression and intermodulation
distortion and the operation of the SW-109 and
SWD-119 drivers.
Switching
Speed
5. See manufacturers' data sheets and application
notes for additional information on digital logic IC's.
6. Please contact your M/A-COM sales
representative for information on the latest
switches and attenuators.
Part Number
Type
Package
SW05-0311 SPST, TTL/CMOS in
SW10-0312 SPDT, TTL/CMOS in
SW10-0313 SPDT, TTL/CMOS in
CR-9
CR-9
CR-9
150 ns
150 ns
150 ns
50 ns
50 ns
50 ns
50ns
SW65-0014 SPST, TTL/CMOS in SOIC-24
SW65-0114 SPST, TTL/CMOS in SOIC-24
SW65-0214 SP3T, TTL/CMOS in SOIC-24
SW65-0313 SP2T, TTL/CMOS in SOIC-16
Dual Control Negative Bias
Switching
Speed
Part No.
Type
Package
SW65-0314 SP4T, TTL/CMOS in SOIC-24
SP4T, absorptive,
50 ns
SW-212
SW-214
SW-226
SW-227
SW-239
SW-259
SW-276
SW-279
SW-289
SPST
SPST terminated
SPDT terminated
SPDT
FP-13
FP-13
6 ns
SW65-0440
QSOP-24
50 ns
6 ns
TTL/CMOS in
SW-110
SW-311
SW-312
SW-313
SW-335
SW-224
SW- 225
SPDT, TTL/CMOS in
CR-9
CR-9
CR-9
CR-9
35 ns
12 ns
7 ns
CR-2
6 ns
SPST, TTL.CMOS in
SPDT, TTL/CMOS in
SPD, TTL/CMOS in
CR-2
6 ns
SPDT
SOIC-8
SOIC-8
CR-2
4 ns
18 ns
200 ns
150 ns
150 ns
SPST terminated
SPDT
8 ns
SPDT, TTL /CMOS in SOIC-8
35 ns
35 ns
6 ns
SPDT, TTL in
SPDT, TTL in
TO-5-4
FP-13
SPDT
SOIC-8
SOIC-14
SOIC-8
SOT-26
SOT-26
SOT-26
SOIC-24
SOT-26
SOT-363
MSOP-10
SP4T
Single Control, Integral Driver, Positive Supply
Switching
SW-337, 338 SPDT terminated
10 ns
42 ns
20 ns
8 ns
SW-3911
SW-3921
SW-3951
SW-419
SW-4251
SW-437
SW-439*
SPDT
SPDT
SPDT
SP4T
SPDT
SPDT
SPDT
Part Number
Type
Package
Speed
SW-205
SW-206
SW-215
SW-216
SW-217
SW-233
SW-236
SPDT, TTL in
SPDT, CMOS in
SPST, TTL in
DI-1
DI-1
20 ns
40 ns
20 ns
40 ns
20 ns
20 ns
40 ns
16 ns
~ 20 ns
~ 8 ns
~ 34 ns
DI-1
SPDT, CMOS in
SPDT, TTL in
SPDT, TTL in
SPDT, CMOS in
DI-1
DI-1
FP-16
FP-16
1. Contains no shunt FET’s, hence can operate with positive
control voltages without ground pull-up components if
provided with DC blocking capacitors on all RF lines.
4
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
• India Tel: +91.80.4155721 • China Tel: +86.21.2407.1588
Visit www.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
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