CHA3694
RoHS COMPLIANT
31-40GHz Variable Gain Amplifier
GaAs Monolithic Microwave IC
Description
The CHA3694 is a variable gain broadband
three-stage monolithic amplifier. It is designed
for a wide range of applications, typically
commercial communication systems.
The backside of the chip is both RF and DC
grounded. This helps to simplify the assembly
process.
The circuit is manufactured with a power
pHEMT process, 0.15µm gate length, via
holes through the substrate and air bridges.
It is supplied in chip form.
On-Wafer Measurements
Vd
RFin
…
RFout
Vctrl
Vg
Main Features
Linear Gain (dB)
22
18
14
10
6
2
-2
-6
-10
-14
-18
30
31
32
33
34
35
36
37
38
39
40
41
42
■
Broadband performance 31-40GHz
■
17dB gain
■
25dBm output IP3
■
26dB gain control range
■
ESD protected (see page 11)
■
DC power consumption: 3.5V, 160mA
■
Chip size: 2.41 x 2.08 x 0.07mm
Frequency (GHz)
Main Characteristics
Tamb. = 25° Vd = 3.5V
C,
Symbol
Fop
G
Gc
OIP3
Parameter
Operating frequency range
Small signal gain
Gain control range
3
rd
Output Intercept Point @ max. gain
Min
31
17
26
25
Typ
Max
40
Unit
GHz
dB
dB
dBm
ESD Protection: Electrostatic discharge sensitive device. Observe handling precautions!
Ref. : DSCHA3694-8155 - 03 Jun 08
1/12
Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Route Départementale 128 - B.P.46 - 91401 Orsay Cedex France
Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
UMS [ UNITED MONOLITHIC SEMICONDUCTORS ]
