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A low-voltage and low-power CMOS temperature sensor circuit with digital output for wireless healthcare monitoring system

  • Agung Setiabudi*
  • , Ryota Sakamoto
  • , Hiroki Tamura
  • , Koichi Tanno
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This paper describes a low-voltage and low-power temperature sensor circuit with digital interface for wireless healthcare monitoring system. The proposed circuit consists of temperature sensor core circuit and digital interface circuit. Both circuits are able to be operated at 1.0 V. The proposed temperature sensor circuit is operated in weak inversion region of MOSFETs. The proposed digital interface circuit converts current into time using Current-to-Time Converter (ITC). The proposed circuit is simulated using HSPICE with 1P, 5M, 3-well, 0.18-μm CMOS process (BSIM3v3.2, LEVEL53). From the simulation, it is obtained that temperature range is 33 °C to 45 °C, resolution of proposed circuit is 0.059 °C with +0.076/-0.075 °C inaccuracy and the total power consumption is 23.2 μW.

Original languageEnglish
Title of host publicationProceedings - 2016 IEEE 46th International Symposium on Multiple-Valued Logic, ISMVL 2016
PublisherIEEE Computer Society
Pages183-188
Number of pages6
ISBN (Electronic)9781467394888
DOIs
Publication statusPublished - 18 Jul 2016
Externally publishedYes
Event46th IEEE International Symposium on Multiple-Valued Logic, ISMVL 2016 - Sapporo, Hokkaido, Japan
Duration: 18 May 2016 → 20 May 2016

Publication series

NameProceedings of The International Symposium on Multiple-Valued Logic
Volume2016-July
ISSN (Print)0195-623X

Conference

Conference46th IEEE International Symposium on Multiple-Valued Logic, ISMVL 2016
Country/TerritoryJapan
CitySapporo, Hokkaido
Period18/05/16 → 20/05/16

Keywords

  • CMOS
  • digital
  • healthcare
  • low-power
  • low-voltage
  • monitoring
  • sensor
  • temperature

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