The information provided herein is believed to be reliable at press time. Stanford Microdevices assumes no responsibility for inaccuracies or omissions.

Stanford Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user’s own risk. Prices and specifications are subject to change

without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Stanford Microdevices does not authorize or warrant any Stanford

Microdevices product for use in life-support devices and/or systems.

Copyright 2000 Stanford Microdevices, Inc. All worldwide rights reserved.

1

http://www.stanfordmicro.com

Phone: (800) SMI-MMIC

522 Almanor Ave., Sunnyvale, CA 94085

EDS-101392 Rev A

Preliminary

Preliminary

Product Description

10

11

12

13

14

15

16

012

34

56

Stanford Microdevices’ SCA-3 is a high performance Gallium

Arsenide Heterojunction Bipolar Transistor MMIC Amplifier. A

Darlington configuration is utilized for broadband performance

up to 5GHz. The heterojunction increases breakdown voltage

and minimizes leakage current between junctions. Cancellation

of emitter junction non-linearities results in higher suppression of

intermodulation products. Typical IP3 at 850 MHz with 65mA is

32.8 dBm.

These unconditionally stable amplifiers provide 13.7 dB of gain

and 17.3 dBm of 1dB compressed power and require only a

single positive voltage supply. Only 2 DC-blocking capacitors,

a bias resistor and an optional inductor are needed for

operation. This MMIC is an ideal choice for wireless applica-

tions such as cellular, PCS, CDPD, wireless data and SONET.

SCA-3

DC-5 GHz, Cascadable

GaAs HBT MMIC Amplifier

NGA-489 Recommended for New Designs

Product Features

Applications

Electrical Specifications

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