A low power oscillator based temperature sensor for RFID applications

Saqib Mohamad, Fang Tang, Abbes Amira, Amine Bermak, Mohieddine Benammar

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

9 Citations (Scopus)

Abstract

In this paper we present a temperature sensor based on a ring oscillator. The ring oscillator uses the CMOS thyristor delay element and has an extremely low power consumption of about 47nW at room temperature with a supply of 0.5V. Low power operation is achieved by eliminating the use of power hungry analog to digital converters (ADCs) at the sensor output. As shown the frequency increases linearly with temperature. The error in temperature sensing is around -1.8°C / +1°C with a resolution of 0.3°C. Simulation is carried out with Chartered Semiconductor's 018μm technology. Owing to the extremely low power consumption, integration with a radio-frequency identification (RFID) tag is also possible.

Original languageEnglish
Title of host publicationProceedings of the 5th Asia Symposium on Quality Electronic Design, ASQED 2013
PublisherIEEE Computer Society
Pages50-54
Number of pages5
ISBN (Print)9781479913145
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event5th Asia Symposium on Quality Electronic Design, ASQED 2013 - Penang, Malaysia
Duration: 26 Aug 201328 Aug 2013

Publication series

NameProceedings of the 5th Asia Symposium on Quality Electronic Design, ASQED 2013

Conference

Conference5th Asia Symposium on Quality Electronic Design, ASQED 2013
Country/TerritoryMalaysia
CityPenang
Period26/08/1328/08/13

Keywords

  • CMOS temperature Sensor
  • Low Power Design

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