18–40 GHz GaAs MMIC
High Isolation SPST Reflective PIN Switch
AP640R1-00
Features
Chip Outline
0.877
0.670
0.585
0.313
0.000
0.000
0.070
1.150
1.225
Dimensions indicated in mm.
All pads are
≥
0.07 mm wide.
Chip thickness = 0.1 mm.
I
Broad Bandwidth
I
Low Loss, < 1.3 dB
I
High Isolation, > 37 dB
I
Excellent Return Loss, < -13 dB
I
Fast Switching Speed, 4 ns
I
High Power Handling, 37 dBm Peak,
33 dBm CW
Description
Alpha’s high isolation, single pole, single 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
two shunt PIN diodes 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.
Absolute Maximum Ratings
Characteristic
Operating Temperature
Storage Temperature
DC Reverse Bias
DC Forward Bias
P
IN
Value
-55°C to +125°C
-65°C to +150°C
-70 V (-20 mA)
+1.3 V (100 mA)
10 W
Electrical Specifications at 25°C
Parameter
Insertion Loss
Isolation
Input Return Loss (Insertion State)
Output Return Loss (Insertion State)
Leakage Current
Switching
Speed
1
P
1 dB
F = 35 GHz
Output Power at 1 dB Compression
1
Symbol
IL
ISO
RL
I
RL
O
I
DD
Condition
F = 18, 21, 24, 28, 31, 35 GHz
F = 38, 40 GHz
F = 18, 21, 24, 28, 31, 35 GHz
F = 38, 40 GHz
F = 18, 21 GHz
F = 24, 28, 31, 35, 38, 40 GHz
F = 18, 21 GHz
F = 24, 28, 31, 35, 38, 40 GHz
V = -50 V
37
33
Min.
Typ.
2
1.0
1.3
42
36
14
24
14
22
2
4
33
12
15
12
13
20
Max.
1.3
1.9
Unit
dB
dB
dB
dB
dB
dB
dB
dB
µA
ns
dBm
1. Not measured on a 100% basis.
2. Typical represents the median parameter value across the specified
frequency range for the median chip.
Alpha Industries, Inc.
[781] 935-5150
•
Fax
[617] 824-4579
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 3/00A
1
ALPHA [ ALPHA INDUSTRIES ]
