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A 32.4 ppm/°C 3.2-1.6V self-chopped relaxation oscillator with adaptive supply generation

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1 Author(s)
Keng-Jan Hsiao ; MediaTek Inc., No.1, Dusing Rd. 1, Hsinchu Science Park, Taiwan

A self-chopped relaxation oscillator with adaptive supply generation provides the stable output clock against variations in temperature and supply voltages. The frequency drift is less than ±0.1% for the supply voltage changing from 1.6 to 3.2 V and ±0.1% for a temperature range from -20 to 100°C, which is reduced by 83% with the self-chopped technique. This relaxation oscillator is implemented in a 60-nm CMOS technology with its active area equals to 0.048 mm2. It consumes 2.8 uA from a 1.6-V supply.

Published in:

2012 Symposium on VLSI Circuits (VLSIC)

Date of Conference:

13-15 June 2012