Attenuated feedback type differential amplifier

Details Attenuated feedback type differential amplifier Attenuated feedback type differential amplifier

1995-05-24

1996-10-22

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330311, 360 67, H03F 345

Patent

active

055680925

ABSTRACT:
A differential amplifier includes an input stage for receiving input signals, an output stage for generating output signals, and an attenuating circuit for attenuating the output signals and feeding attenuation signals back to the input stage. The input stage includes a current switch formed by two transistors connected commonly to a current source and each connected to two load amplifiers. The load amplifiers are controlled by the attenuation signal, to substantially reduce the amplification of the two transistors.

REFERENCES:
patent: 3399357 (1968-08-01), Weilerstein

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