Switched capacitor offset suppression

Details Switched capacitor offset suppression Switched capacitor offset suppression

1997-03-11

1998-04-14

Mottola, Steven

Amplifiers

With periodic switching input-output

330 51, H03F 114

Patent

active

057397201

ABSTRACT:
A switched-capacitor circuit that includes a first signal path disposed between a first input node and a first output node, and a second signal path disposed between a second input node and a second output node. The first and second switches can be alternately disposed within the first and second signal paths. An amplifier responsive to the switches can be provided, and its offset can be cancelled. The outputs of the amplifiers can be maintained, and this can involve buffering.

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K. Nagarai, K. Singhal, T.R. Viswanathan, and J. Vlach, J.; "Reduction of Finite-gain Effect in Switched-capacitor Filters," Electronics Letters, vol. 21, No. 15, pp. 644-645, Jul. 18th, 1985.
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