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

Bongjin Kim, Weichao Xu, Chris H. Kim

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

8 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 1.6mVpp differential input signal with 39dB SNDR and 6.2 ENOB was experimentally verified.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE 2013 Custom Integrated Circuits Conference, CICC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781467361460
DOIs
StatePublished - Nov 7 2013
Event35th 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 2013Sep 25 2013

Publication series

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

Other

Other35th Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2013
Country/TerritoryUnited States
CitySan Jose, CA
Period9/22/139/25/13

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