Title :
Low-voltage low VDD sensitivity relaxation oscillator for passive wireless microsystems
Author :
Yuan, F. ; Soltani, Nahid
Author_Institution :
Dept. of Electr. & Comput. Eng., Ryerson Univ., Toronto, ON, Canada
Abstract :
A low-voltage relaxation oscillator for passive wireless microsystems is proposed. The oscillator employs a current pulse generator to generate effective hysteresis for oscillation without using a Schmitt trigger, avoiding the drawback of the high sensitivity of the frequency of Schmitt trigger relaxation oscillators to supply voltage fluctuation. The proposed oscillator has been implemented in TSMC-0.18 mum 1.8 V six-metal one-poly CMOS technology. The performance of the oscillator is validated using measurement results.
Keywords :
CMOS integrated circuits; current fluctuations; low-power electronics; micromechanical devices; pulse generators; relaxation oscillators; TSMC CMOS technology; frequency sensitivity; low-voltage relaxation oscillator; passive wireless microsystems; pulse generator; size 0.18 mum; voltage 1.8 V; voltage fluctuation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.1597
