A 9μW 88dB DR fully-clocked switched-opamp ΔΣ modulator with novel power and area efficient resonator

Jian Xu, Xiaobo Wu, Hanqing Wang, Bill Liu, Menglian Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

A 9μW 88dB DR switched-opamp (SO) ΔΣ modulator is implemented in a low cost 0.35μm CMOS process. To evaluate the effects of finite voltage gain and 1/f noise clearly, two high efficient methods are introduced. And a new fully switched-off SO with a 50% power saving and double Figure-of-Merit (FOM) over the traditional type is proposed to reduce the total power. Besides, to improve the performance, a novel resonator idea applicable to SO technique is adopted to realize a coefficient of 1/100 with 75% power and 70% area reduction over the conventional design. The FOM of the designed modulator is highest among the collected recent low power modulators.

Original languageEnglish (US)
Title of host publicationIEEE Custom Integrated Circuits Conference 2010, CICC 2010
DOIs
StatePublished - Dec 13 2010
Event32nd Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2010 - San Jose, CA, United States
Duration: Sep 19 2010Sep 22 2010

Publication series

NameProceedings of the Custom Integrated Circuits Conference
ISSN (Print)0886-5930

Other

Other32nd Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2010
CountryUnited States
CitySan Jose, CA
Period9/19/109/22/10

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Xu, J., Wu, X., Wang, H., Liu, B., & Zhao, M. (2010). A 9μW 88dB DR fully-clocked switched-opamp ΔΣ modulator with novel power and area efficient resonator. In IEEE Custom Integrated Circuits Conference 2010, CICC 2010 [5617458] (Proceedings of the Custom Integrated Circuits Conference). https://doi.org/10.1109/CICC.2010.5617458