A 14BIT 80 kHz Sigma-Delta A/D Converter: Modeling, Design and Performance Evaluation

This paper describes the development of a Sigma-Delta A/D converter. Included is a brief overview of Sigma-Delta conversion. The A/D converter achieves an 88.5 dB dynamic range and a maximum signal- to- noise ratio of 81.5 dB. The harmonic distortion is negligible.