Application Note
S2079
Drivers for GaAs FET Switches and Digital Attenuators
Rev. V5
Additional Notes:
Application Note M537,
GaAs MMIC Based Control
Components with Integral Drivers
defines performance
parameters for switches and attenuators.
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.
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.
See Application Note M521,
Positive Voltage Control
of GaAs MMIC Control Devices
for more information
on floating attenuators above ground potential.
See Application Note M539,
Drivers for GaAs MMIC
Switches and Digital Attenuators
for more
information on compression and intermodulation
distortion and the operation of the SW-109 and
SWD-119 drivers.
See manufacturers' data sheets and application
notes for additional information on digital logic IC's.
Appendix
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.
2.
Dual Positive Control, Requires Positive Supply
(Includes pull-up components on-chip)
Part Number
SW-277
SW-349
SW-394
SW-399
Type
SPDT
SPST terminated
SPDT
SPST
Package
SOIC-8
SOIC-8
SOIC-8
SOT-26
Switching
Speed
35 ns
2
μs
36
μs
110
μs
3.
4.
Single Control, Integral Driver, Requires
Positive And Negative Supplies
Part Number
SW05-0311
SW10-0312
SW10-0313
SW65-0014
SW65-0114
5.
Type
SPST, TTL/CMOS in
SPDT, TTL/CMOS in
SPDT, TTL/CMOS in
SPST, TTL/CMOS in
SPST, TTL/CMOS in
SP3T, TTL/CMOS in
SP2T, TTL/CMOS in
SP4T, TTL/CMOS in
SP4T, absorptive,
TTL/CMOS in
SPDT, TTL/CMOS in
SPST, TTL.CMOS in
SPDT, TTL/CMOS in
SPD, TTL/CMOS in
SPDT, TTL /CMOS in
SPDT, TTL in
SPDT, TTL in
Package
CR-9
CR-9
CR-9
SOIC-24
SOIC-24
SOIC-24
SOIC-16
SOIC-24
QSOP-24
CR-9
CR-9
CR-9
CR-9
SOIC-8
TO-5-4
FP-13
Switching
Speed
150 ns
150 ns
150 ns
50 ns
50 ns
50 ns
50ns
50 ns
50 ns
35 ns
12 ns
7 ns
18 ns
200 ns
150 ns
150 ns
6. Please contact your M/A-COM sales
representative for information on the latest
switches and attenuators.
Dual Control Negative Bias
Part No.
SW-212
SW-214
SW-226
SW-227
SW-239
SW-259
SW-276
SW-279
SW-289
SW-337, 338
SW-391
SW-392
SW-395
SW-425
1
1
1
Type
SPST
SPST terminated
SPDT terminated
SPDT
SPDT
SPST terminated
SPDT
SPDT
SP4T
SPDT terminated
SPDT
SPDT
SPDT
SP4T
SPDT
SPDT
SPDT
Package
FP-13
FP-13
CR-2
CR-2
SOIC-8
SOIC-8
CR-2
SOIC-8
SOIC-14
SOIC-8
SOT-26
SOT-26
SOT-26
SOIC-24
SOT-26
SOT-363
MSOP-10
Switching
Speed
6 ns
6 ns
6 ns
6 ns
4 ns
8 ns
35 ns
35 ns
6 ns
10 ns
42 ns
20 ns
8 ns
16 ns
~ 20 ns
~ 8 ns
~ 34 ns
SW65-0214
SW65-0313
SW65-0314
SW65-0440
SW-110
SW-311
SW-312
SW-313
SW-335
SW-224
SW- 225
Single Control, Integral Driver, Positive Supply
Part Number
SW-205
SW-206
SW-215
SW-216
SW-217
SW-233
SW-236
Type
SPDT, TTL in
SPDT, CMOS in
SPST, TTL in
SPDT, CMOS in
SPDT, TTL in
SPDT, TTL in
SPDT, CMOS in
Package
DI-1
DI-1
DI-1
DI-1
DI-1
FP-16
FP-16
Switching
Speed
20 ns
40 ns
20 ns
40 ns
20 ns
20 ns
40 ns
SW-419
1
SW-437
SW-439*
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
Visit www.macomtech.com for additional data sheets and product information.
•
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Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
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.
MA-COM [ M/A-COM TECHNOLOGY SOLUTIONS, INC. ]
