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Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579 Email sales@alphaind.com www.alphaind.com
1
Specifications subject to change without notice. 2/00A
24–35 GHz GaAs MMIC
High Power SPDT Reflective PIN Switch
Features
I Broad Bandwidth
I Low Loss, < 1.5 dB
I High Isolation, > 28 dB
I Return Loss, < -12 dB
I Fast Switching Speed, < 4 ns
I High Power Handling, 40 dBm Peak,
36 dBm CW
Description
Alpha’s high power, single pole, double throw PIN diode
switch is a robust, high performance switch. It is ideal for
low loss, high isolation applications, particularly where
broad bandwidths and high power handling is required.
The chip uses Alpha’s proven PIN diode technology, and
is based upon MBE layers for the highest uniformity and
repeatability. The diodes employ surface passivation to
ensure a rugged, reliable part with through-substrate via
holes and gold-based backside metallization to facilitate
an epoxy die attach process. The GaAs MMIC employs
a specialized high power PIN diode in each arm and an
on-chip bias network. Chips are measured on a 100%
basis at 24, 28, 31 and 35 GHz for insertion loss, isolation,
input and output return losses, and also at DC for diode
breakdown voltage and turn on voltage.
Dimensions indicated in mm.
All pads are
≥ 0.07 mm wide.
Chip thickness = 0.1 mm.
Chip Outline
Parameter
Symbol
Condition
Min.
Typ.2
Max.
Unit
Insertion Loss
IL
F = 24, 28, 31, 35 GHz
1.2
1.5
dB
Isolation
ISO
F = 24, 28, 31, 35 GHz
28
30
dB
Input Return Loss
RLI
F = 24, 28, 31, 35 GHz
16
12
dB
Output Return Loss (Insertion State)
RLO
F = 24, 28, 31, 35 GHz
17
14
dB
Leakage Current
IDD
V = -50 V
2
20
A
Switching Speed1
4ns
Output Power at 1 dB Compression1
P1 dB
F = 35 GHz
36
dBm
Electrical Specifications at 25°C
0.000
1.100
2.190
1.095
0.988
2.078
0.113
0.398
Absolute Maximum Ratings
Characteristic
Value
Operating Temperature
-55°C to +125°C
Storage Temperature
-65°C to +150°C
DC Reverse Bias
-100 V (-20 mA)
DC Forward Bias
+2.6 V (100 mA)
PIN
15 W
AP640R7-00
1. Not measured on a 100% basis.
2. Typical represents the median parameter value across the specified
frequency range for the median chip.