Product Description

Preliminary

1

EDS-101801 Rev A

Phone: (800) SMI-MMIC

http://www.stanfordmicro.com

726 Palomar Ave., Sunnyvale, CA 94085

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 2001 Stanford Microdevices, Inc. All worldwide rights reserved.

SGA-7489

DC-3000 MHz Silicon Germanium

HBT Cascadeable Gain Block

Product Features

Applications

Stanford Microdevices’ SGA-7489 is a high performance

cascadeable 50-ohm amplifier designed for operation at 5

Volts DC. This RFIC uses the latest Silicon Germanium

Heterostructure Bipolar Transistor (SiGe HBT) process

This circuit uses a darlington pair topology with resistive

feedback for broadband performance as well as stability

over its entire temperature range. Internally matched to

50 ohm impedance, the SGA-7489 requires only DC blocking

and bypass capacitors and a bias inductor for external

components. Frequency performance may be extended using

the 2 GHz application circuit shown on sheet 5.

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1000

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Frequency (MHz)