A study of sigma-delta modulator performance for audio application

Analog to Digital converters fined different usage in various receiver design architectures. Analog modules appear to be precise and quite resistant to a variety of sources of noise and interference. Most of the highly precise A/D converters involve the use of sigma-delta modulation which is associated with over sampling and noise shaping. These converters use the least parasitic capacitances and small feature sizes characteristic of scaled VLSI technology by trading speed for resolution.