Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 11/02A
3740 GHz GaAs MMIC
Low Noise Amplifier
Features
Single Bias Supply Operation (5 V)
3.5 dB Typical Noise Figure at 38 GHz
13 dB Typical Small Signal Gain
0.25 m Ti/Pd/Au Gates
100% On-Wafer RF, DC and Noise
Figure Testing
100% Visual Inspection to MIL-STD-883
MT 2010
Chip Outline
AA038N3-00
Description
Skyworks' three-stage reactively-matched 3740 GHz
MMIC low noise amplifier has typical small signal gain of
13 dB with a typical noise figure of 3.5 dB at 38 GHz.
The chip uses Skyworks' proven 0.25
m low noise
PHEMT 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.
Parameter
Condition
Symbol
Min.
Typ.
3
Max.
Unit
Drain Current
V
D
= 5 V
I
DS
20
27
mA
Small Signal Gain
F = 3740 GHz
G
10
13
dB
Noise Figure
F = 38 GHz
NF
3.5
3.8
dB
Input Return Loss
F = 3740 GHz
RL
I
-12
-6
dB
Output Return Loss
F = 3740 GHz
RL
O
-12
-6
dB
Output Power at 1 dB Gain Compression
1
F = 38 GHz
P
1 dB
6
dBm
Two-Tone Output Third-Order Intercept
1
F = 38 GHz
OIP3
15
dBm
Thermal Resistance
2
JC
202
C/W
Electrical Specifications at 25C (V
DS
= 5 V)
0.000
0.085
1.283
1.610
0.000
1.310
1.225
0.655
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.
Characteristic
Value
Operating Temperature (T
C
)
-55C to +90C
Storage Temperature (T
ST
)
-65C to +150C
Bias Voltage (V
D
)
6 V
DC
Power In (P
IN
)
10 dBm
Junction Temperature (T
J
)
175C
Absolute Maximum Ratings
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.
3740 GHz GaAs MMIC Low Noise Amplifier
AA038N3-00
2
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 11/02A
Frequency (GHz)
Typical Small Signal Performance
S-Parameters (V
DS
= 5 V)
S-Parameters (dB)
-25
-20
-15
-10
-5
0
5
10
15
20
35
36
37
38
39
40
41
42
43
S
11
S
22
S
12
S
21
Two-Tone Output Third-Order
Intercept @ 38 GHz
V
DS
(V)
OIP3 (dBm)
14
15
16
17
18
4.0
4.5
5.0
5.5
6.0
Two-Tone Output Third-Order
Intercept @ V
DS
= 5 V
Frequency (GHz)
OIP3 (dBm)
13
14
15
16
17
37
38
39
40
Output Power and Relative Third-Order
Intermodulation Products
F = 38 GHz, V
DS
= 5 V
P
IN
(dBm)
P
OUT
(dBm)
IM3 (dBc)
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
-21 -20 -19 -18 -17 -16 -15 -14 -13 -12
-48
-46
-44
-42
-40
-38
-36
-34
-32
-30
-28
-26
IM3
P
OUT
Typical Performance Data
3740 GHz GaAs MMIC Low Noise Amplifier
AA038N3-00
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
3
Specifications subject to change without notice. 11/02A
V
D
= 5 V
RF IN
RF OUT
.01
F 50 pF
Bias Arrangement
D
Detail A
RF IN
RF OUT
V
D
Circuit Schematic
For biasing on, adjust V
DS
from zero to the desired value
(5 V recommended). For biasing off, reverse the biasing on procedure.
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