An analog-to-digital converter with correction of offset errors

摘要

An analog-to-digital converter (200) is proposed. The converter includes at least one stage (105) for converting an analog input signal into a digital output signal using a parallel quantizer (115) comparing the analog input signal with a plurality of threshold values in parallel; the converter of the invention further includes, for at least one selected stage (105), means (210,220) for estimating an analog correction signal indicative of the mean value of a quantization error of the selected stage, and means (440i) for at least partially compensating an offset error of the parallel quantizer (105) in the selected stage according to the analog correction signal.