Absorptive SPDT GaAs MMIC
Switch
Technical Data
MGS-71008
Features
• Single-Pole, Double-Throw
Output
• Broad Bandwidth:
DC to 3␣ GHz
• High Isolation:
37␣ dB␣ Typical at 1␣ GHz
• Fast Switching Time:
3␣ ns␣ Typical
• Ultra Low DC Power
Consumption
• Small Surface-Mount Plastic
Package
Description
The MGS-71008 is a single-pole,
double-throw monolithic GaAs
MMIC switch. The J2 and J3 of the
MGS-71008 are terminated to
ground by internal 50 Ω load
resistors when “off” (a reflective
version, the MGS-70008, which
terminates the “off” port to
ground, is also available). The
switch is sealed in a small, plastic,
surface-mount SO-8 package.
Switching is actuated by a -5 V
control voltage per the truth table
shown on the next page. -3.3␣ V
operation is also possible with
some reduction in P
The MGS-71008 is designed for
high volume commercial applications where low insertion loss,
high isolation, and fast switching
speed are required. Its low cost
and high performance make it
suitable for a wide variety of uses
such as digital cellular, spread
spectrum, GPS, and other RF
switching applications. Refer to
applications note AN-G007 for
more application details.
The die is fabricated using HP’s
nominal 0.3␣ micron recessed
Schottky-barrier-gate, gold
metallization, and silicon nitride
passivation to achieve excellent
performance, uniformity, and
reliability.
and IP3.
1 dB
SO-8 Package
AC Equivalent
Circuit/Pinout
J1
Ground
J2
Control 1 Control 2
Ground
Ground
J3
7-161
5965-9118E
MGS-71008 Absolute Maximum Ratings
Absolute
Symbol Parameter Units Maximum
Maximum Input Power
below 500 MHz dBm +27
above 500 MHz dBm +30
Control Voltage V -8.0
T
STG
Note:
1. Operation of this device above any one of these limits may cause permanent
damage.
Storage Temperature °C -65 to 150
[1]
Electrical Specifications, T
Symbol Parameters and Test Conditions
I
C
Control Input Current DC µA 12 110
= 25° C
A
[1]
Units Min. Typ. Max.
BW Bandwidth GHz DC-3
IL Insertion Loss 200 MHz dB 0.9
1000 MHz dB 1.2 1.5
2000 MHz dB 1.3
2500 MHz dB 1.4
3000 MHz dB 1.5
ISO Isolation 200 MHz dB 52
1000 MHz dB 30 37
2000 MHz dB 26
2500 MHz dB 22
3000 MHz dB 16
VSWR Voltage Standing Wave Ration (on port) DC-1000 MHz — 1.2:1 1.4:1
J1, J2 or J3 1000- 3000 MHz — 1.3:1
VSWR Voltage Standing Wave Ration (off port) DC-2000 MHz — 1.2:1
J2 or J3 2000-3000 MHz — 1.3:1
I
SW
[2]
P
1 dB
Switching Speed 10% to 90% ns 3
Output @ 1 dB Gain Compression 200 MHz dB m 16.5
1000 MHz d Bm 25.2
2000 MHz d Bm 25.2
[2]
IP
3
3rd Order Intercept 200 MHz dB m 41
1000 MHz d Bm 45
2000 MHz d Bm 45
Notes:
1.
Measured in a 50 Ω system at 1 GHz, unless otherwise specified, V
2.
Measured in a 50 Ω system with V
= -7 V.
C
7-162
= -5 V.
C