Метод оперативного виявлення поодиноких відхилень ваг розрядів АЦП послідовного наближення з ваговою надлишковістю

Abstract

In this article we present a method for operational detection of a single bit’s weight deviation for successive approximation ADC that isimple mented using weight redundancy. The method is based on analysis of a coding scheme inthemain coding process. The method relieson the fact that a set of code combinations of ADC will be limited when applying weight redundancy. A relation between the list of possible code combinations in the output of ADC and the bit deviation was analysed. The accuracy and restrictions of the method were evaluated.