A fully-digital beat-frequency based ADC achieving 39dB SNDR for a 1.6mVpp input signal

Bongjin Kim; Weichao Xu; Chris H. Kim

doi:10.1109/CICC.2013.6658553

A fully-digital beat-frequency based ADC achieving 39dB SNDR for a 1.6mV_pp input signal

Bongjin Kim, Weichao Xu, Chris H. Kim

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

10 Scopus citations

Abstract

A fully-digital VCO-based ADC featuring a novel beat frequency detection scheme is demonstrated in 65nm LP CMOS. The proposed beat frequency based ADC is unique compared to previous VCO-based ADCs in that it is highly effective in measuring extremely small changes (e.g., 0.01%) in the VCO frequency within a short sampling time (e.g., 100 VCO periods). Direct amplifier-less A-to-D conversion of a 1.6mV_pp differential input signal with 39dB SNDR and 6.2 ENOB was experimentally verified.

Original language	English (US)
Title of host publication	Proceedings of the IEEE 2013 Custom Integrated Circuits Conference, CICC 2013
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)	9781467361460
DOIs	https://doi.org/10.1109/CICC.2013.6658553
State	Published - Nov 7 2013
Event	35th Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2013 - San Jose, CA, United States Duration: Sep 22 2013 → Sep 25 2013

Publication series

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

Other

Other	35th Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2013
Country/Territory	United States
City	San Jose, CA
Period	9/22/13 → 9/25/13

Publisher link

10.1109/CICC.2013.6658553

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Kim, B., Xu, W., & Kim, C. H. (2013). A fully-digital beat-frequency based ADC achieving 39dB SNDR for a 1.6mV_pp input signal. In Proceedings of the IEEE 2013 Custom Integrated Circuits Conference, CICC 2013 Article 6658553 (Proceedings of the Custom Integrated Circuits Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CICC.2013.6658553

A fully-digital beat-frequency based ADC achieving 39dB SNDR for a 1.6mV_pp input signal. / Kim, Bongjin; Xu, Weichao; Kim, Chris H.
Proceedings of the IEEE 2013 Custom Integrated Circuits Conference, CICC 2013. Institute of Electrical and Electronics Engineers Inc., 2013. 6658553 (Proceedings of the Custom Integrated Circuits Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kim, B, Xu, W & Kim, CH 2013, A fully-digital beat-frequency based ADC achieving 39dB SNDR for a 1.6mV_pp input signal. in Proceedings of the IEEE 2013 Custom Integrated Circuits Conference, CICC 2013., 6658553, Proceedings of the Custom Integrated Circuits Conference, Institute of Electrical and Electronics Engineers Inc., 35th Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2013, San Jose, CA, United States, 9/22/13. https://doi.org/10.1109/CICC.2013.6658553

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