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A sigma-delta modulator with a novel chopper correlated double sampled integrator

  • Luo Wang*
  • , Huihui Ji
  • , Quan Sun
  • *Corresponding author for this work
  • Beihang University
  • CAS - Institute of Acoustics

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a fully differential second-order Sigma-Delta modulator (SDM) based on a chopper correlated double sampled integrator. The Correlated double sampling technique (CDS) and chopper stabilization technique (CHS) are used in the first integrator to eliminate the low frequency noise of the amplifier. The whole circuit implemented in a 0.35 um CMOS technology with 3.3V supply voltage. The simulation results show that the proposed SDM has better performance on eliminating the contamination of the low frequency noise of the amplifier than traditional CDS modulator.

Original languageEnglish
Title of host publicationProceedings - 2011 IEEE 9th International Conference on ASIC, ASICON 2011
Pages449-452
Number of pages4
DOIs
StatePublished - 2011
Event2011 IEEE 9th International Conference on ASIC, ASICON 2011 - Xiamen, China
Duration: 25 Oct 201128 Oct 2011

Publication series

NameProceedings of International Conference on ASIC
ISSN (Print)2162-7541
ISSN (Electronic)2162-755X

Conference

Conference2011 IEEE 9th International Conference on ASIC, ASICON 2011
Country/TerritoryChina
CityXiamen
Period25/10/1128/10/11

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