Title :
A 90μW 12MHz Relaxation Oscillator with a -162dB FOM
Author :
Geraedts, Paul F J ; Van Tuijl, Ed ; Klumperink, Eric A M ; Wienk, Gerard J M ; Naut, Bram
Author_Institution :
Univ. of Twente, Enschede
Abstract :
Both ring oscillators and relaxation oscillators are subsets of RC oscillators featuring large tuning ranges and small areas. Such relaxation oscillators have two advantages with respect to ring oscillators: 1) they have a constant frequency tuning gain; and 2) their phase can be read out continuously due to their triangular (or sawtooth) waveform. A major disadvantage of practical relaxation oscillators is their poor phase-noise compared to ring oscillators.
Keywords :
relaxation oscillators; RC oscillators; frequency tuning; relaxation oscillator; triangular waveform; Battery charge measurement; CMOS technology; Circuit simulation; Linearity; Phase measurement; Predictive models; Ring oscillators; Solid state circuits; Switches; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2008. ISSCC 2008. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-2010-0
Electronic_ISBN :
978-1-4244-2011-7
DOI :
10.1109/ISSCC.2008.4523200
