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A monolithic realization of a switched-capacitor amplifier is reported. It has op-amp offset voltage cancellation without requiring the output to slew to ground each time the amplifier is reset. The amplifier is very insensitive to low op-amp gain. It also has clock-feedthrough cancellation. Finally, it can be used as a differential amplifier with both inputs being sampled at the same instance.
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Martin et al. (1987) studied this question.
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