Offset voltage correction for high gain amplifier

Details Offset voltage correction for high gain amplifier Offset voltage correction for high gain amplifier

2006-12-06

2010-02-09

Pascal, Robert (Department: 2817)

Amplifiers

With periodic switching input-output

C330S308000

Reexamination Certificate

active

07659776

ABSTRACT:
A method and an apparatus are described for an offset correction in a high gain amplifier. An embodiment of an amplifier circuit includes an amplifier to convert a current signal into a voltage signal, where the amplifier generates an offset voltage in the voltage signal. The amplifier circuit also includes a sampling component coupled with the amplifier, with the sampling component subtracting a first sample of the voltage signal from a second sample of the voltage signal to produce a difference value. The amplifier circuit further includes a gain component coupled with the sampling component to amplify the difference between the first sample and the second sample.

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