High gain amplifier using two current mirrors

Details High gain amplifier using two current mirrors High gain amplifier using two current mirrors

1987-07-30

1988-07-05

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330255, 330260, H03F 345

Patent

active

047557672

ABSTRACT:
An op amp is disclosed in which a high-gain differential input stage drives a high-gain common emitter stage that in turn drives an emitter follower buffer output stage. Adequate voltage gain is obtained in only two stages which makes the amplifier easy to compensate and much less subject to spurious oscillation.

REFERENCES:
patent: 4334196 (1982-06-01), Schade, Jr.

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