A current compensated reference oscillator

Wan Jing Li, Soon-Jyh Chang, Ying Zu Lin

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

3 Citations (Scopus)

Abstract

This paper reports a reliable current compensated reference oscillator without any BJT or external component. To maintain a stable oscillation frequency, the discharging current of the proposed architecture varies with process, supply voltage and temperature (PVT) variations. Fabricated in a 0.18-μm digital CMOS process, this oscillator consumes 0.5 mW from a 1.8-V supply. The post-simulation results show the worst case is 12%. From 500 times Monte Carlo simulation results, the frequency variations are all limited within ±3%. The measurement result of ten samples at room temperature with 10% supply voltage deviation shows variation within ±10%. The maximum variation is -10.19% with process and supply voltage variations from measurement results.

Original languageEnglish
Title of host publication2009 International Symposium on VLSI Design, Automation and Test, VLSI-DAT '09
Pages130-133
Number of pages4
DOIs
Publication statusPublished - 2009 Dec 1
Event2009 International Symposium on VLSI Design, Automation and Test, VLSI-DAT '09 - Hsinchu, Taiwan
Duration: 2009 Apr 282009 Apr 30

Publication series

Name2009 International Symposium on VLSI Design, Automation and Test, VLSI-DAT '09

Other

Other2009 International Symposium on VLSI Design, Automation and Test, VLSI-DAT '09
CountryTaiwan
CityHsinchu
Period09-04-2809-04-30

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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