A Low Power Programmable Switch Supply Dynamic Comparator

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

This paper introduces a programmable switch supply comparator that uses a programmable reservoir capacitor to achieve a reduced effective supply voltage during the decision phase. This comparator achieves up to 50% power consumption reduction against the conventional dynamic comparator. Fabricated in 65nm CMOS, the silicon results of the PMOS-input programmable comparator show programmable power consumption and energy efficiency ranging from 2.7 - 4.1μW and 0.22 - 0.5pJ/conv, respectively. Similarly, the input-referred noise can be programmed from 100 - 180μVrms. Additionally, the power (energy efficiency) and input-referred noise can be programmed at any clock cycle, making this design an ideal solution for the two-comparator SAR ADC architecture.

Original languageEnglish
Title of host publicationISCAS 2024 - IEEE International Symposium on Circuits and Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350330991
DOIs
Publication statusPublished - 2024
Event2024 IEEE International Symposium on Circuits and Systems, ISCAS 2024 - Singapore, Singapore
Duration: 19 May 202422 May 2024

Publication series

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

Conference

Conference2024 IEEE International Symposium on Circuits and Systems, ISCAS 2024
Country/TerritorySingapore
CitySingapore
Period19/05/2422/05/24

Keywords

  • coarse and fine comparator
  • Dynamic comparator
  • low-noise
  • low-power
  • offset
  • SAR
  • StrongARM latch

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