Negative feedback amplifier having GaAs FET's

摘要

A negative feedback amplifier has an amplifying section including a first GaAs FET with its source, gate and drain electrodes. A second GaAs FET has its drain electrode connected to the source electrode of the first GaAs FET. An input terminal is connected to the gate electrode of either the first or the second GaAs FET. A feedback circuit feeds back a part of the output given from the drain electrode of the other GaAs FET's to the gate electrode of the same GaAs FET.