Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
1
Specifications subject to change without notice. 3/99A
GaAs PIN IC SPDT Switch
218 GHz
Features
s
Low Loss <2.0 dB
s
High Isolation >50 dB
s
Good Return Loss <-9 dB
s
Broadband 218 GHz
s
Fast Switching <2 ns
s
High Power Handling Capability 40 dBm
Peak 27 dBm CW
AP218R2-00
Description
The AP218R2-00 GaAs PIN IC SPDT switch chip is ideal
for low loss, high isolation applications, especially where
broadband, high power handling is required. The GaAs IC
employs two shunt and one series PIN diode per arm to
achieve low loss, high isolation switching with exceptional
power handling characteristics. Typical switching speed
is 2 ns. Power consumption is low, typically 75 mA total
at -5 V.
0.000
0.000
1.015
0.724
1.587
3.175
0.459
2.715
0.924
Chip Outline
Parameter
Frequency
Min.
Typ.
Max.
Unit
Frequency Range
218 GHz
Insertion Loss
2.0
dB
VSWR
-12
-9
dB
Isolation
50
dB
Electrical Specifications at 25C
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Speed
Rise, Fall (10/90% or 90/10% RF)
2
nS
Switching Current
On Arm
24
mA
Off Arm
48
mA
V
OFF
-5
V
Input Power for 1 dB Compression
+25mA/-3.5 V
33
dBm
Control Voltages
V
Low
-5
V
V
High
+5
V
Operating Characteristics at 25C
Dimensions indicated in mm.
All DC (V) pads are 0.1 x 0.1 mm and RF In, Out pads are 0.07 mm wide.
Chip thickness = 0.1 mm.
GaAs PIN IC SPDT Switch 218 GHz
AP218R2-00
2
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
Specifications subject to change without notice. 3/99A
-80
-70
-60
-50
-40
-30
-20
-10
0
0
2
4
6
8
10
12
14
16
18
20
I
n
s
e
r
t
i
o
n
L
o
s
s
(
d
B
)
I
s
o
l
a
t
i
o
n
(
d
B
)
Frequency (GHz)
Typical Insertion Loss and
Isolation vs. Frequency
1
2
3
4
5
6
7
8
0
J
3
0.924
J
2
J
1
Bias 1
B
1
= +5 V/-5 V
B
2
= -5 V/+5 V
Bias 2
L
R
2
C
L
R
2
C
L
R
1
Typical Performance Data
J
3
J
2
J
1
Bias 1
Ground Return
Bias 2
Chip Layout
Suggested External Bias Scheme
L = 510 turn 0.7 mil gold wire air core
C = 520 pF
R
1
= 820
R
2
= 180
B
1
B
2
J
1
J
2
J
1
J
3
+5 V
-5 V
Isolation
Insertion Loss
-5 V
+5 V
Insertion Loss
Isolation
Truth Table
Characteristic
Value
Operating Temperature (T
OP
)
-55C to +125C
Storage Temperature (T
ST
)
-65C to +150C
DC Reverse Bias
-70 V (-10
A)
DC Forward Bias
1.3 V (50 mA)
P
IN
10 W
Absolute Maximum Ratings
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