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A Pressure sensor with 0.30 mmhg resolution incorporating a 4.19 pj/conv thyristor-based capacitance-To-Time converter for intra-corporeal Pressure Monitoring Applications

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4 Scopus citations

Abstract

This work presents a Capacitance-To-Digital Converter for in-vivo pressure monitoring in clinical scenarios. The developed system combines a Capacitance-To-Time Converter (CTC) and a Time-To-Digital Converter (TDC), of which the CTC presents a novel architecture based on CMOS Thyristor elements with a power consumption of only 2.99 μW. The interface was implemented in a 350 nm CMOS technology and tested in combination with a commercially available capacitive pressure transducer. The Capacitance-To-Time Converter unit achieves an average pressure resolution of 0.30 mmHg while consuming 4.19 pJ/conv.

Original languageEnglish
Title of host publicationBioCAS 2019 - Biomedical Circuits and Systems Conference, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509006175
DOIs
StatePublished - Oct 2019
Event2019 IEEE Biomedical Circuits and Systems Conference, BioCAS 2019 - Nara, Japan
Duration: 17 Oct 201919 Oct 2019

Publication series

NameBioCAS 2019 - Biomedical Circuits and Systems Conference, Proceedings

Conference

Conference2019 IEEE Biomedical Circuits and Systems Conference, BioCAS 2019
Country/TerritoryJapan
CityNara
Period17/10/1919/10/19

Keywords

  • Biomedical electronics
  • Capacitive transducers
  • Pressure sensors
  • Thyristor circuits

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