A 366kS/s 400uW 0.0013mm2 frequency-to-digital converter based CMOS temperature sensor utilizing multiphase clock

Kisoo Kim, Hokyu Lee, Sangdon Jung, Chulwoo Kim

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

40 Citations (Scopus)

Abstract

The proposed temperature sensor is based on CMOS ring oscillators and a frequency-to-digital converter capable of simple and efficient temperature conversion to digital value. The proposed temperature sensor consumes 400uW at a conversion rate of 366kS/s and performs the fastest temperature-to-digital conversion among those introduced in previous work. The whole block occupies 0.0066 mm2 (0.0013 mm2 for temperature sensor). Four multiphase clocks were utilized to enhance the resolution of the sensor 8 times better. After one point calibration, the chip-to-chip measurement spread was +2.748°C ∼ -2.899°C over the temperature range of -40°C to 110°C.

Original languageEnglish
Title of host publication2009 IEEE Custom Integrated Circuits Conference, CICC '09
Pages203-206
Number of pages4
DOIs
Publication statusPublished - 2009 Dec 1
Event2009 IEEE Custom Integrated Circuits Conference, CICC '09 - San Jose, CA, United States
Duration: 2009 Sep 132009 Sep 16

Publication series

NameProceedings of the Custom Integrated Circuits Conference
ISSN (Print)0886-5930

Other

Other2009 IEEE Custom Integrated Circuits Conference, CICC '09
CountryUnited States
CitySan Jose, CA
Period09/9/1309/9/16

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Kim, K., Lee, H., Jung, S., & Kim, C. (2009). A 366kS/s 400uW 0.0013mm2 frequency-to-digital converter based CMOS temperature sensor utilizing multiphase clock. In 2009 IEEE Custom Integrated Circuits Conference, CICC '09 (pp. 203-206). [5280879] (Proceedings of the Custom Integrated Circuits Conference). https://doi.org/10.1109/CICC.2009.5280879