A 0.8V, 43.5μW ECG signal acquisition IC with a referenceless time-to-digital converter

Shu Hsuan Lin, Fu To Lin, Nai Chen Cheng, Yu-Te Liao

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

2 Scopus citations

Abstract

This paper presents a 0.8V analog front-end (AFE) with referenceless time-based digitalization architecture for electrocardiogram (ECG) signal acquisition. Compared to the conventional voltage-domain architecture, the proposed AFE achieves a smaller chip area, lower power consumption, and self-calibration without the high-accuracy clock as well as voltage reference. The chip is fabricated using 0.18μm CMOS technology and occupies a chip area of 0.84 mm2. The design attains a variable gain from 35 dB to 47 dB within a bandwidth of 7 kHz and 10-bit time-to-digital conversion while consuming 43.5 μW at a supply voltage of 0.8V.

Original languageEnglish
Title of host publicationISCAS 2016 - IEEE International Symposium on Circuits and Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1066-1069
Number of pages4
ISBN (Electronic)9781479953400
DOIs
StatePublished - 29 Jul 2016
Event2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016 - Montreal, Canada
Duration: 22 May 201625 May 2016

Publication series

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

Conference

Conference2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016
CountryCanada
CityMontreal
Period22/05/1625/05/16

Keywords

  • analog front-end
  • Bio-signal acquisition
  • self-timing
  • time-based

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