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Low-Voltage Process-Compensated VCO with On-Chip Process Monitoring and Body-Biasing Circuit Techniques

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Title: Low-Voltage Process-Compensated VCO with On-Chip Process Monitoring and Body-Biasing Circuit Techniques
Authors: Ueno, Ken Browse this author
Hirose, Tetsuya Browse this author
Asai, Tetsuya Browse this author →KAKEN DB
Amemiya, Yoshihito Browse this author →KAKEN DB
Keywords: voltage-controlled oscillator
process variation
process compensation
body bias
current reference
Issue Date: 1-Dec-2009
Publisher: IEICE - Institute of Electronics, Information and Communication Engineers
Journal Title: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Volume: E92A
Issue: 12
Start Page: 3079
End Page: 3081
Publisher DOI: 10.1587/transfun.E92.A.3079
Abstract: A voltage-controlled oscillator (VCO) tolerant to process variations at lower supply voltage was proposed. The circuit consists of an on-chip threshold-voltage-monitoring circuit, a current-source circuit, a body-biasing control circuit, and the delay cells of the VCO. Because variations in low-voltage VCO frequency are mainly determined by that of the current in delay cells. a current-compensation technique was adopted by using an on-chip threshold-voltage-monitoring circuit and body-biasing circuit techniques. Monte Carlo SPICE simulations demonstrated that variations in the oscillation frequency by using the proposed techniques were able to be suppressed about 65% at a I-V supply voltage, compared to frequencies with and without the techniques.
Rights: Copyright © 2009 The Institute of Electronics, Information and Communication Engineers
Relation: http://search.ieice.org/
Type: article
URI: http://hdl.handle.net/2115/43081
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 上野 憲一

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