High voltage monitoring successive approximation analog to digital converter
作者： Edward K. F. Lee
DOI:
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摘要: A successive approximation ADC made of a low voltage configurable differential amplifier and logic circuits which can convert high analog input to digital equivalent. The be configured as either an op amp or comparator depending upon the mode operation. An capacitor C1 is switchably coupled electrode selected for sampling. switched array C2 across output. SAR provides output corresponding sampled voltage. During sampling interval charge transfer interval, amp. on multiplied by ratio C1/C2 transferred array. conversion converts equivalent
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