I. Introduction
Many APPLICATIONS in the consumer market and also in the area of wireless base stations require analog-to-digital converters (ADCs) with bandwidths up to 20 MHz and resolutions of 10–12 bits. Such systems are often accompanied by highly complex digital circuitry, which requires an implementation in a deep-submicron technology. Typically, for such requirements, subranging or pipeline ADCs are employed [1] [2] [3]. In this paper, we discuss the possibility of building a sigma-delta ADC for those applications and show the potential benefits compared to other ADC architectures.