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A temperature insensitive ring oscillator for low power RF communications

  • Beihang University

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

Abstract

CMOS Ring oscillators can be used in RF communication with lower power consumption and smaller area as compared with LC tanks, but they are sensitive to environmental temperatures. It is therefore important to compensate the temperature effect for CMOS ring oscillators. In this paper we studied a new kind of circuit structure. It can make the output frequency of the ring oscillator remain constant at different temperatures. The circuit has been implemented in a 0.35μm COMS technology. The circuit includes three blocks: the temperature sensor block, the temperature adaptive block and the subtraction circuit block. We show theoretical analysis of the principals of the compensation effect. The modeling and parameters tuning process are quite simple. The proposed circuit structure can compensate the temperature effect and stabilize the output frequency of ring oscillators.

Original languageEnglish
Title of host publicationProceedings - 2013 IEEE International Conference on Green Computing and Communications and IEEE Internet of Things and IEEE Cyber, Physical and Social Computing, GreenCom-iThings-CPSCom 2013
Pages1804-1809
Number of pages6
DOIs
StatePublished - 2013
Event2013 IEEE International Conference on Green Computing and Communications and IEEE Internet of Things and IEEE Cyber, Physical and Social Computing, GreenCom-iThings-CPSCom 2013 - Beijing, China
Duration: 20 Aug 201323 Aug 2013

Publication series

NameProceedings - 2013 IEEE International Conference on Green Computing and Communications and IEEE Internet of Things and IEEE Cyber, Physical and Social Computing, GreenCom-iThings-CPSCom 2013

Conference

Conference2013 IEEE International Conference on Green Computing and Communications and IEEE Internet of Things and IEEE Cyber, Physical and Social Computing, GreenCom-iThings-CPSCom 2013
Country/TerritoryChina
CityBeijing
Period20/08/1323/08/13

Keywords

  • Ring oscillator
  • Subtraction circuit
  • Temperature adaptive block
  • Temperature sensor

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