Low power DT delta-sigma modulator with ring amplifier SC-integrator

Takuma Suguro, Hiroki Ishikuro

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

8 Citations (Scopus)

Abstract

This paper presents a low power DT sigma-delta modulator for wide variety of sensor application using a ring amplifier for SC-integrator. The topology is a second order modulator with single-bit quantizer. Dead-zone effect of the ring amplifier in oversampling ADC is discussed. The fabricated test chip in 65nm CMOS process achieved SNDR of 62dB and 1MHz signal band at sampling frequency of 102.4MHz. The power consumption is 1mW and FoM is 483fJ/conv.step.

Original languageEnglish
Title of host publicationISCAS 2016 - IEEE International Symposium on Circuits and Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2006-2009
Number of pages4
ISBN (Electronic)9781479953400
DOIs
Publication statusPublished - 2016 Jul 29
Event2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016 - Montreal, Canada
Duration: 2016 May 222016 May 25

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2016-July
ISSN (Print)0271-4310

Other

Other2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016
CountryCanada
CityMontreal
Period16/5/2216/5/25

Keywords

  • ADC
  • dead-zone
  • delta sigma
  • discrete time
  • ring amplifier

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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