Sequential placement of reference levels in a level-crossing analog-to-digital converter

Level-crossing analog-to-digital converters (LC ADCs) have been considered in the literature and have been shown to efficiently sample certain classes of signals. One important aspect in their implementations is the placement of the reference levels in the circuitry. In order to obtain samples, the levels need to be appropriately placed within the input's dynamic range. In this paper we optimize the performance of LC ADC by providing a sequential algorithm that adaptively updates the reference levels to minimize distortion.