A novel dynamic element matching technique suited for high pass ΔΣ ADCs

Chadi Jabbour, Hussein Fakhoury, Van Tam Nguyen, Patrick Loumeau

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

Abstract

This paper presents a novel dynamic element matching technique (DEM) suited for high pass (HP) Delta Sigma (ΔΣ) modulators. It is based on transforming the high pass filtering behavior of classical DEM algorithms into a low pass behavior to make them adapted for HP ΔΣ modulators. The proposed technique is demonstrated for the data weight averaging (DWA) algorithm at the system level and the electrical level using a 65 nm CMOS process. The achieved performances in terms of SFDR and SNDR are similar to the performances of classical low pass (LP) ΔΣ modulators employing regular DWA. Moreover the required additional complexity is very low : just 8 simple switches and some digital gates.

Original languageEnglish
Title of host publication2013 IEEE 11th International New Circuits and Systems Conference, NEWCAS 2013
DOIs
Publication statusPublished - 10 Sept 2013
Externally publishedYes
Event2013 IEEE 11th International New Circuits and Systems Conference, NEWCAS 2013 - Paris, France
Duration: 16 Jun 201319 Jun 2013

Publication series

Name2013 IEEE 11th International New Circuits and Systems Conference, NEWCAS 2013

Conference

Conference2013 IEEE 11th International New Circuits and Systems Conference, NEWCAS 2013
Country/TerritoryFrance
CityParis
Period16/06/1319/06/13

Keywords

  • Analog to Digital Converter
  • DEM
  • DWA
  • Delta Sigma
  • high pass

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