Adaptive digital correction for dual quantization σ-δ modulators

S. Kiaei, S. Abdennadher, G. C. Temes, Y. Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Oversampled δ-σ A/D converters have been applied in many signal processing applications. Among these, cascade and dual-quantizer modulator [1-] have been applied to minimize the quantization noise. The primary disadvantage of the dual-quantizer and cascade modulators is that they rely on the precise cancellation of the analog and digital signals. However, due to the capacitor mismatches and finite op-amp gain, the analog components are not ideal which causes large signal-to-noise ratio degradation in the system. This paper describes a digital adaptive a correction and estimation method to estimate the nonidealities of the analog components for the dual-quantization and MASH modulators.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE International Symposium on Circuits and Systems
PublisherPubl by IEEE
Pages1228-1229
Number of pages2
ISBN (Print)0780312813
StatePublished - Jan 1 1993
EventProceedings of the 1993 IEEE International Symposium on Circuits and Systems - Chicago, IL, USA
Duration: May 3 1993May 6 1993

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2
ISSN (Print)0271-4310

Other

OtherProceedings of the 1993 IEEE International Symposium on Circuits and Systems
CityChicago, IL, USA
Period5/3/935/6/93

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Kiaei, S., Abdennadher, S., Temes, G. C., & Yang, Y. (1993). Adaptive digital correction for dual quantization σ-δ modulators. In Proceedings - IEEE International Symposium on Circuits and Systems (pp. 1228-1229). (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2). Publ by IEEE.