37–40 GHz GaAs MMIC
Driver Amplifier
AA038P2-00
Features
I
Single Bias Supply Operation (5 V)
I
13 dB Typical Small Signal Gain
I
14 dBm Typical P
1 dB
Output Power
at 38 GHz
I
0.25
µm
Ti/Pd/Au Gates
I
100% On-Wafer RF and DC Testing
0.000
3.050
1.525
1.413
Chip Outline
0.458
1.414
2.418
0.761
I
100% Visual Inspection to MIL-STD-883
MT 2010
0.000
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 P
1 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.
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
Operating Temperature (T
C
)
Storage Temperature (T
ST
)
Bias Voltage (V
D
)
Power In (P
IN
)
Junction Temperature (T
J
)
Value
-55°C to +90°C
-65°C to +150°C
7 V
DC
16 dBm
175°C
Electrical Specifications at 25°C (V
DS
= 5 V)
Parameter
Drain Current
Small Signal Gain
Input Return Loss
Output Return Loss
Output Power at 1 dB Gain Compression
Saturated Output Power
Thermal Resistance
1
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.
Condition
F = 37–40 GHz
F = 37–40 GHz
F = 37–40 GHz
F = 38 GHz
F = 38 GHz
Symbol
I
DS
G
RL
I
RL
O
P
1 dB
P
SAT
Θ
JC
Min.
11
Typ.
2
75
13
-9
-12
Max.
100
-6
-10
Unit
mA
dB
dB
dB
dBm
dBm
°C/W
13
15
14
16
199
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
20.0
10.0
0.0
S
21
Circuit Schematic
(dB)
-10.0
-20.0
-30.0
-40.0
S
11
S
22
Detail A
S
12
36
37
38
39
40
41
42
V
Frequency (GHz)
Typical Small Signal Performance
S-Parameters (V
DS
= 5 V)
RF IN
Bias Arrangement
5V
.01
µF
50 pF
See
Detail A
RF OUT
RF IN
RF OUT
For biasing on, adjust V
DS
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
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