Resistor-Based Temperature Sensing Chip with Digital Output

Kai Min Chang, Yen Ju Lin, Chia Liang Wei, Soon Jyh Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work, a smart temperature sensing chip is proposed for the applications of internet-of-Things and wearable devices. A resistor-based temperature sensing bridge is integrated with a fully differential difference amplifier, a 10-bit successive approximation analog-To-digital converter, and timing circuits into a single chip. This chip is designed to sense temperature once per second, and is activated only 64 \mu S per second and stays in the standby mode in the rest of time for reducing power consumption. The proposed chip is designed and fabricated by a 0.18m 1P6M mixed-signal process, and the total area is 953 \times 708 \mu m{2}. According to the measured results, the linearity between the measured temperature and the digital output is excellent, and it can work with a supply voltage ranging from 1.4 V to 2.0V.

Original languageEnglish
Title of host publication2020 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728160832
DOIs
Publication statusPublished - 2020 Aug
Event2020 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2020 - Hsinchu, Taiwan
Duration: 2020 Aug 102020 Aug 13

Publication series

Name2020 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2020

Conference

Conference2020 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2020
CountryTaiwan
CityHsinchu
Period20-08-1020-08-13

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

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