Selftest ADCs for smart sensors

A procedure for testing the pulse-potential ADC, aimed at minimizing the analog sections zero drift impact on input signal conversion accuracy is proposed. The procedure is based on the basic properties of the ADC - quantization of energy. It is shown that introduced testing phases allows to determine the binary words that are corrective in common additive sequence of measured quantity calculation and not increasing its sensitivity. Parametric conditions for the method applicability that justifies the need of support circuit design tasks solutions are formulated.