CHA2097A99F/00 UMS [United Monolithic Semiconductors], CHA2097A99F/00 Datasheet

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CHA2097A99F/00

Manufacturer Part Number
CHA2097A99F/00
Description
20-40GHz Variable Gain Amplifier
Manufacturer
UMS [United Monolithic Semiconductors]
Datasheet
Description
The CHA2097a is a variable gain broadband
three-stage monolithic amplifier. It is designed
for a wide range of applications, from military to
commercial
backside of the chip is both RF and DC grounds.
This helps simplify the assembly process.
The circuit is manufactured with a PM-HEMT
process, 0.25µm gate length, via holes through
the substrate, air bridges and electron beam
gate lithography.
It is available in chip form.
Main Features
■ Broadband performances : 20-40GHz
■ 14dBm output power ( 1dB gain comp. )
■ 18dB 1.5dB gain
■ 10dB gain control range.
■ Low DC power consumption, 140mA @ 3.5V
■ Chip size :
Main Characteristics
Tamb. = 25°C
ESD Protection : Electrostatic discharge sensitive device. Observe handling precautions !
Symbol
Ref. : DSCHA20978021
P1dB
Gctrl
Fop
Id
G
Operating frequency range
Small signal gain
Gain control range
Output power at 1dB gain compression
Bias current
2.04 X 0.97 X 0.10 mm
communication
20-40GHz Variable Gain Amplifier
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
GaAs Monolithic Microwave IC
United Monolithic Semiconductors S.A.S.
Parameter
systems. The
1/8
-10
-15
-20
-25
In
25
20
15
10
-5
5
0
0
Vctrl
Specifications subject to change without notice
10
Typical on wafer measurements
Min
20
16
13
20
frequency (GHz)
Vg1
Typ
140
18
10
14
Vd1
30
CHA2097a
Vg2
S22
Max
40
200
40
Vg3
S11
Vd23
50
Unit
dBm
GHz
mA
dB
dB
60
Out

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CHA2097A99F/00 Summary of contents

Page 1

Variable Gain Amplifier GaAs Monolithic Microwave IC Description The CHA2097a is a variable gain broadband three-stage monolithic amplifier designed for a wide range of applications, from military to commercial communication backside of the chip is both RF ...

Page 2

CHA2097a Electrical Characteristics for Broadband Operation Tamb = +25°C, Vd1,2,3 = 3.5V Symbol Fop Operating frequency range (1) G Small signal gain (1) Small signal gain flatness ( Reverse isolation (1) P1dB Output power at 1dB gain compression ...

Page 3

Variable Gain Amplifier Typical Scattering Parameters (On wafer Sij measurements): Bias Conditions: Vd=3.5V, Vg=0V, Vctrl=-1V, Id=140mA F(GHz) S11 S11 dB /° 10 -4,75 -115,2 11 -5,92 -124 12 -6,95 -131 13 -8,07 -137 -142,7 15 -9,96 -147,7 ...

Page 4

CHA2097a Typical Scattering Parameters (On wafer Sij measurements): Bias Conditions: Vd=3.5V, Vg=0V, Vctrl=-0.3V, Id=140mA F(GHz) S11 S11 dB /° 10 -21,22 -127,3 11 -21,29 -137,1 12 -21,49 -145,7 13 -21,84 -154 14 -22,04 -162,3 15 -22,52 -169,6 16 -23,04 -176,4 ...

Page 5

Variable Gain Amplifier Typical On wafer measurements: Tamb = +25°C Gain and phase versus voltage control on CL pad : CHA2097 Vd=3,5v Vg=0v Id=140mA 20 18 Gain at 20GHz Gain at 40GHz 6 4 ...

Page 6

CHA2097a Chip Assembly and Mechanical Data IN 100pF To Vctrl DC supply feed Note : Supply feed should be capacitively bypassed. ( Chip thickness : 100µm. All dimensions are in micrometers ) Ref. : DSCHA20978021 Route Départementale 128 , B.P.46 ...

Page 7

Variable Gain Amplifier Typical Bias Tuning The circuit schematic is given below : IN A ttenuator For gain control operation, The three drain biases are connected altogether same way, all the gate biases are connected together at ...

Page 8

... Ordering Information Chip form : CHA2097a99F/00 Information furnished is believed to be accurate and reliable. However United Monolithic Semiconductors S.A.S. assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of United Monolithic Semiconductors S ...

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