31鈥?5 GHz GaAs MMIC
Driver Amplifier
AA035P3-00
Features
s
Single Bias Supply Operation (5 V)
s
19 dB Typical Small Signal Gain
s
17 dBm Typical P
1 dB
Output Power
at 35 GHz
s
0.25
碌m
Ti/Pd/Au Gates
s
100% On-Wafer RF and DC Testing
0.000
3.810
1.905
1.250
Chip Outline
1.554
2.471
3.386
s
100% Visual Inspection to MIL-STD-883
MT 2010
0.000
Description
Alpha鈥檚 three-stage reactively-matched Ka band GaAs
MMIC driver amplifier has a typical P
1 dB
of 17 dBm with
18 dB associated gain at 35 GHz. The chip uses Alpha鈥檚
proven 0.25
碌m
MESFET technology, which 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 solder or epoxy die attach
processes. The amplifier is a self-bias design requiring a
single positive drain bias to one of any three bonding sites.
All chips are screened for S-parameters prior to shipment
for guaranteed performance. A broad range of
applications exist in both the high reliability and
commercial areas where high gain and power are
required.
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擄C to +90擄C
-65擄C to +150擄C
7 V
DC
19 dBm
175擄C
Electrical Specifications at 25擄C (V
DS
= 5 V)
Parameter
Drain Current
Small Signal Gain
Noise
Figure
1
Input Return Loss
Output Return Loss
Output Power at 1 dB Gain Compression
Saturated Output Power
Thermal Resistance
2
1. Not measured on a 100% basis.
2. Calculated value based on measurement of discrete FET.
3. Typical represents the median parameter value across the specified
frequency range for the median chip.
Condition
F= 31鈥?5 GHz
F= 35 GHz
F= 31鈥?5 GHz
F= 31鈥?5 GHz
F= 35 GHz
F= 35 GHz
Symbol
I
DS
G
NF
RL
I
RL
O
P
1 dB
P
SAT
螛
JC
Min.
15
Typ.
3
275
19
10.5
-14
-16
Max.
350
Unit
mA
dB
dB
-10
-10
dB
dB
dBm
dBm
擄C/W
15
16
17
19
66
Alpha Industries, Inc.
[781] 935-5150
鈥?/div>
Fax
[617] 824-4579
鈥?/div>
Email
sales@alphaind.com
鈥?/div>
www.alphaind.com
Specifications subject to change without notice. 1/01A
1
1
2
