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Mitigating aperture error in pipelined ADCs without a front-end sample-And-hold amplfier

  • Amrita Vishwa Vidyapeetham

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

2 Scopus citations

Abstract

Pipelined analog-To-digital converters (ADCs) without dedicated front-end sample-And-hold amplifier (SHA) suffer from aperture-error. This error is caused by the mismatch in the sampled signal between the sub-ADC and the multiplying digital-To-Analog converter (MDAC) of the first stage. This paper describes a newarchitecture that eliminates this aperture-error. A 12-bit pipelined ADC was designed and simulated in UMC 65-nm SP process with the first stage being replaced by the proposed architecture. Simulations show that the performance of the proposed architecture is same as that of the conventional architecture provided the conventional architecture does not have any aperture-error.

Original languageEnglish
Title of host publicationProceedings - 31st International Conference on VLSI Design, VLSID 2018 - Held concurrently with 17th International Conference on Embedded Systems, ES 2018
PublisherIEEE Computer Society
Pages7-12
Number of pages6
ISBN (Electronic)9781538636923
DOIs
StatePublished - Mar 27 2018
Event31st International Conference on VLSI Design, VLSID 2018 - Pune, India
Duration: Jan 6 2018Jan 10 2018

Publication series

NameProceedings of the IEEE International Conference on VLSI Design
Volume2018-January

Conference

Conference31st International Conference on VLSI Design, VLSID 2018
Country/TerritoryIndia
CityPune
Period01/6/1801/10/18

Keywords

  • Analog-To-digital converter (ADC)
  • Aperture-error
  • Capacitor sharing.
  • Clock skew
  • Path mismatch
  • SHA-less

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