Commutating autozero amplifier

Details Commutating autozero amplifier Commutating autozero amplifier

H - Electricity

03

F

320/1, 330/13

H03F 1/02 (2006.01) G01R 17/00 (2006.01) G06G 7/12 (2006.01) H03F 1/26 (2006.01) H03F 1/30 (2006.01)

Patent

CA 1097410

A B S T R A C T An active analog signal processing system preferably embodied as an integrated circuit includes a pair of like amplifiers which are alternately switched between a first signal processing mode and a second zeroing mode in which a capacitor in the amplifier circuit is reverse charged to a voltage level equivalent to the average noise voltage level of the system whereby the system automatically cancels the low frequency noise thereof to provide a simple low noise processing system.

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