CHA2190

20-30GHz Low Noise Amplifier

Ref :

DSCHA21902036 -05-Feb.-02-

8/9

Specifications subject to change without notice

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

Chip Biasing options

Internal DC schematic

This chip is self-biased, and flexibility is provided by the access to positive Vg.

The internal DC electrical schematic is given in order to use these pads in a safe way.

Absolute recommandations:

N°1 : Do not exceed Vds = 3.5 Volt ( Vds: internal Drain to Source voltage ).

N°2 : Do not bias in such a way that Vgs* becomes positive. (Vgs :internal Gate to Source voltage )

Typical biasing table and Typical results in test Jig at 40 GHz

40GHz IN TEST Jig

Vds ( V) Vg1 (V)

Vg2 (V)

Id (mA)

Typical NF(dB) Typical Gain (dB) Typical P-1dB (dB) Typical Psat (dB)

Standard

4

NC

NC

50

2.2

15

11

13

Low Noise High linearity

4.5

NC

1

60

2.2

15

12

14

Low noise /low current consumption

4NC

-140

2.2

15

9.5

12

Switch off

3.5

-1

-8

0

X

X

X

X