Parasitic insensitive switched capacitor operational amplifier c

Details Parasitic insensitive switched capacitor operational amplifier c Parasitic insensitive switched capacitor operational amplifier c

1981-10-26

1983-09-06

Mullins, James B.

Amplifiers

With periodic switching input-output

330109, H03F 102

Patent

active

044031955

ABSTRACT:
A switched capacitor operational amplifier circuit which has both AC and DC precision and which substantially eliminates parasitic capacitance effects is provided. The operational amplifier circuit utilizes compensated CMOS transmission gates and a structure which switches a parasitic diffusion capacitance between two points of equal voltage potential thereby preventing a charge transfer which would create an offset voltage error.

REFERENCES:
patent: 4355285 (1982-10-01), Kelley et al.

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