ALPHA AA038P2-00

37–40 GHz GaAs MMIC
Driver Amplifier
AA038P2-00
0.458
■ Single Bias Supply Operation (5 V)
■ 13 dB Typical Small Signal Gain
■ 14 dBm Typical P1 dB Output Power
at 38 GHz
■ 0.25 µm Ti/Pd/Au Gates
2.418
Chip Outline
1.414
Features
1.525
1.413
0.761
■ 100% On-Wafer RF and DC Testing
Description
Alpha’s two-stage reactively-matched 37–40 GHz GaAs
MMIC driver amplifier has typical small signal gain of
13 dB with a typical P1 dB of 14 dBm at 38 GHz. The chip
uses Alpha’s proven 0.25 µm MESFET technology, and
is based upon MBE layers and electron beam lithography
for the highest uniformity and repeatability. The FETs
employ surface passivation to ensure a rugged, reliable
part with through-substrate via holes and gold-based
backside metallization to facilitate a conductive epoxy die
attach process. All chips are screened for gain, output
power and S-parameters prior to shipment for guaranteed
performance.
3.050
0.000
0.000
■ 100% Visual Inspection to MIL-STD-883
MT 2010
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.
Absolute Maximum Ratings
Characteristic
Value
Operating Temperature (TC)
-55°C to +90°C
Storage Temperature (TST)
-65°C to +150°C
Bias Voltage (VD)
7 VDC
Power In (PIN)
16 dBm
Junction Temperature (TJ)
175°C
Electrical Specifications at 25°C (VDS = 5 V)
Parameter
Condition
Drain Current
Symbol
Min.
IDS
Small Signal Gain
F = 37–40 GHz
G
11
Typ.2
Max.
Unit
75
100
mA
13
dB
Input Return Loss
F = 37–40 GHz
RLI
-9
-6
dB
Output Return Loss
F = 37–40 GHz
RLO
-12
-10
dB
Output Power at 1 dB Gain Compression
F = 38 GHz
P1 dB
13
14
dBm
Saturated Output Power
F = 38 GHz
PSAT
15
16
dBm
199
°C/W
Thermal
ΘJC
Resistance1
1. Calculated value based on measurement of discrete FET.
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. 12/99A
1
37–40 GHz GaAs MMIC Driver Amplifier
AA038P2-00
Typical Performance Data
Circuit Schematic
20.0
10.0
S21
(dB)
0.0
-10.0
S11
-20.0
S22
Detail A
-30.0
-40.0
V
S12
36
37
38
39
40
41
42
Frequency (GHz)
Typical Small Signal Performance
S-Parameters (VDS = 5 V)
RF IN
Bias Arrangement
5V
RF IN
.01 µF
See
Detail A
50 pF
RF OUT
For biasing on, adjust VDS from zero to the desired value
(5 V recommended). For biasing off, reverse the biasing on procedure.
2
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 12/99A
RF OUT