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A 0.6V 200kHz silicon oscillator with temperature compensation for wireless sensing applications

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2 Author(s)
Chien-Ying Yu ; Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Chen Yi Lee

This paper presents a silicon oscillator suitable for low-cost and low-power wireless sensing applications. With the comparisons of ring oscillators in different temperature coefficients, the frequency of an internal ring oscillator is estimated and parameterized by a second-order polynomial. Accordingly, the output clock is compensated in a frequency division fashion. The oscillator is implemented in 90-nm CMOS technology with an area of 0.04mm2. Operating at 0.6V, the output frequency is within 200±1kHz over the temperature range of Ȓ25°C to 125°C with power consumption of 48μW.

Published in:

2011 IEEE 54th International Midwest Symposium on Circuits and Systems (MWSCAS)

Date of Conference:

7-10 Aug. 2011