A low power relaxation oscillator with process insensitive auto-calibration scheme

Xin Lu, Bo Wang, Zhihuang Wen, Xiaojin Zhao, Yuan Cao, Amine Bermak

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

Abstract

In this paper, we present an auto-calibrated process insensitive relaxation oscillator. A process sensitivity of 1.36% is achieved by automatically sensing the output clock frequency spread and alternatively adjusting the capacitor-used for charging and discharging. In addition, a time to digital converter is adopted for tuning the compensating capacitor. Moreover, the proposed oscillator with on-chip calibration scheme, implemented by UMC 0.18μm 1P6M standard process, is validated by our reported extensive post-layout simulation results. A frequency of 32.7 kHz can be generated by operating the system under 1V supply voltage.

Original languageEnglish
Title of host publication2016 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages694-697
Number of pages4
ISBN (Electronic)9781509015702
DOIs
Publication statusPublished - 3 Jan 2017
Event2016 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2016 - Jeju, Korea, Republic of
Duration: 25 Oct 201628 Oct 2016

Other

Other2016 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2016
CountryKorea, Republic of
CityJeju
Period25/10/1628/10/16

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing

Cite this

Lu, X., Wang, B., Wen, Z., Zhao, X., Cao, Y., & Bermak, A. (2017). A low power relaxation oscillator with process insensitive auto-calibration scheme. In 2016 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2016 (pp. 694-697). [7804068] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APCCAS.2016.7804068