Offset compensation for switched capacitor integrators

Details Offset compensation for switched capacitor integrators Offset compensation for switched capacitor integrators

1980-09-08

1982-12-21

Mullins, James B.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

328162, 330 9, G06G 718

Patent

active

043652042

ABSTRACT:
An integrator circuit utilizing an operational amplifier and switched capacitor elements in place of resistors in such a manner as to provide compensation for voltage offsets present in the operational amplifier resulting in an output voltage free from the effects of voltage offsets inherent in operational amplifiers.

REFERENCES:
patent: 3667055 (1972-05-01), Uchida
patent: 3879668 (1975-04-01), Edwards
patent: 4163947 (1979-08-01), Weedon
patent: 4302689 (1981-11-01), Brodie
Hosticka et al., "MOS Sampled Data Recursive Filters Using Switched Capacitor Integrators," IEEE Journal of Solid-State Circuits, vol., SC-12, No. 6, Dec. 1977, pp. 600-607.

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