Sigma-delta ADC and DAC for digital wireless communication

Abstract

This paper provides a brief overview of Sigma-Delta (/spl Sigma//spl Delta/) ADC and DAC techniques. An emphasis is given on their applications in wireless communication. It first introduces the theory and design methodology of low-power and high-resolution /spl Sigma//spl Delta/ ADCs and DACs for audio applications. The discussion then leads to high speed /spl Sigma//spl Delta/ ADCs and DACs for RF baseband channel application in wireless communication. Finally, a discussion is given on IF bandpass /spl Sigma//spl Delta/ ADCs and DACs.