Skip to Main Content
Incremental ADCs can operate at lower oversampling ratios than DeltaSigma modulators, resulting in higher input signal bandwidths. In this paper it is shown that time-interleaving can further increase the input signal bandwidth in incremental ADCs to the point that the oversampling ratio is equal to the time-interleaving factor, resulting in no decrease in the allowable input signal bandwidth due to oversampling. This paper investigates some of the advantages and challenges that time-interleaved incremental ADCs offer, and presents an example where a time-interleaved by 4 incremental ADC with an oversampling ratio of 4 can attain a resolution of 12 bits.
Date of Conference: 2-5 July 2007