Offset correction circuit

Details Offset correction circuit Offset correction circuit

1981-11-19

1984-02-07

Mullins, James B.

Amplifiers

With periodic switching input-output

307491, H03F 108

Patent

active

044306229

ABSTRACT:
This invention provides a scheme for offset correction of a unity gain amplifier used in conjunction with data sampling systems. In the present invention, the offset correction of the feedback unity gain amplifier is sensed during operation of the amplifier and is incrementally adjusted to maintain an offset voltage of approximately zero.

REFERENCES:
patent: 4255715 (1981-03-01), Cooperman
Jaeger et al., "Dynamic Zero-Correction Method Suppresses Offset Error in OP Amps", Electronics, Dec. 4, 1972, pp. 109, 110.

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