ALPHA AP640R5-00

24–40 GHz GaAs MMIC
SPDT Reflective PIN Switch
AP640R5-00
0.113
■ Broad Bandwidth
■ Low Loss, < 1.1 dB (24–35 GHz)
2.078
Chip Outline
Features
1.100
■ High Isolation, > 30 dB
0.988
■ Excellent Return Loss, < -12 dB
■ Fast Switching Speed, < 2 ns
0.398
■ High Power Handling, 37 dBm Peak,
33 dBm CW
Alpha’s 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 shunt 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.
2.190
Description
1.095
0.000
0.000
Dimensions indicated in mm.
All pads are ≥ 0.07 mm wide.
Chip thickness = 0.1 mm.
Absolute Maximum Ratings
Characteristic
Value
Operating Temperature
-55°C to +125°C
Storage Temperature
-65°C to +150°C
DC Reverse Bias
-70 V (-10 mA)
DC Forward Bias
+1.3 V (50 mA)
PIN
10 W
Electrical Specifications at 25°C
Parameter
Insertion Loss
IL
Isolation
Typ.2
Max.
F = 24, 28, 31, 35 GHz
0.8
1.1
dB
F = 38, 40 GHz
1.8
2.4
dB
Symbol
Condition
Min.
ISO
F = 24, 28, 31, 35, 38, 40 GHz
Input Return Loss
RLI
F = 24, 28, 31, 35, 38, 40 GHz
25
15
dB
Output Return Loss (Insertion State)
RLO
F = 24, 28, 31, 35 GHz
20
13
dB
F = 38, 40 GHz
14
12
dB
Leakage Current
IDD
V = -50 V
1
10
µA
2
ns
F = 35 GHz
33
dBm
Switching Speed1
Output Power at 1 dB Compression1
P1 dB
30
34
Unit
dB
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
24–40 GHz GaAs MMIC SPDT Reflective PIN Switch
AP640R5-00
Typical Performance Data
-1
Output Return Loss
-20
-2
-30
-3
Input Return Loss
Isolation
-10
20
25
30
35
-1
Output Return Loss
-20
-2
Input Return Loss
-30
-3
Isolation
-4
15
0
Insertion Loss
-40
40
-4
-26.0
-5.0
-3.5
-1.0
0.0
Frequency (GHz)
Reverse Bias Voltage (V)
Performance vs. Frequency
Bias Conditions: IF = 10 mA, VR = -3.5 V
Performance vs. DC Bias
F = 28 GHz, Forward Current = 10 mA
0
Truth Table
0
Insertion Loss
-1
Output Return Loss
-20
-30
-2
Isolation
-3
Insertion Loss (dB)
-10
Insertion Loss (dB)
-10
-40
Return Loss & Isolation (dB)
0
Return Loss & Isolation (dB)
0
Insertion Loss
Insertion Loss (dB)
Return Loss & Isolation (dB)
0
B1
B2
J1–J2
J1–J3
+10 mA
-5 V
Insertion Loss
Isolation
-5 V
+10 mA
Isolation
Insertion Loss
Circuit Schematic
B1
B2
Input Return Loss
-40
-4
1
2
5
10
20
Forward Current (mA)
Performance vs. DC Bias
F = 28 GHz, Reverse Voltage = -3.5 V
J3
J2
Bias Arrangement
“ON ARM”
-5 V (~ 1 µA)
J1
“OFF ARM”
+10 mA (~ 1.25 V)
RESISTOR
RESISTOR
B1
B2
J2
J3
J1
2
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 3/00A