Reduction of comparator power requirement in a switched capacitor ADC

摘要

This application relates to analog to digital converters, particularly AD convertors of the successive approximation type, and to the reduction of power consumption and/or the size of active devices used in these converters. In particular, an analog to digital converter is disclosed in which an array of switched capacitors is decoupled from a comparator. Preferably, this decoupling is achieved using a small capacitor.