CMOS high gain amplifier utilizing positive feedback

Details CMOS high gain amplifier utilizing positive feedback CMOS high gain amplifier utilizing positive feedback

1983-06-30

1987-10-20

LaRoche, Eugene R.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330277, H03F 316, H03F 345

Patent

active

047017180

ABSTRACT:
A CMOS operational amplifier comprises an input stage for receiving first and second potentials, a bias stage and first and second gain stages. In order to improve the frequency response, capacitors are employed to provide positive feedback. The biasing stage maintains the output in its active region, and avoids the necessity of external biasing.

REFERENCES:
Tsividis et al. "A Process-Insensitive Hi-Performance NMOS OpAmp" IEEE J. S. S. Cicts. vol. SC-13, n. 6, Dec. 1980 pp. 921-928.

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