A 0.6V, 1.3GHz dynamic comparator with cross-coupled latches

Bo Jyun Kuo, Bo Wei Chen, Chia-Ming Tsai

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

9 Scopus citations

Abstract

This paper presents a sub-1V dynamic comparator with cross-coupled latches at multi-GHz operation. The low-voltage cross-coupled latches structure with a separated tail current can be used to optimize the speed and the offset in the latched stage, respectively. A high speed readout circuit is also proposed to further enhance the speed of the comparator. With BER=109, the comparator achieves 143fJ at 3.3GHz and a 0.9V supply, which decreases to only 49fJ at 1.3GHz and a 0.6V supply. Both measured results are based on the input differential voltage of only 4.2mV. The comparator is implemented in 65nm CMOS technology and the chip area of the core circuit occupies 265μm2.

Original languageEnglish
Title of host publication2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479962754
DOIs
StatePublished - 28 May 2015
Event2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015 - Hsinchu, Taiwan
Duration: 27 Apr 201529 Apr 2015

Publication series

Name2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015

Conference

Conference2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015
CountryTaiwan
CityHsinchu
Period27/04/1529/04/15

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    Kuo, B. J., Chen, B. W., & Tsai, C-M. (2015). A 0.6V, 1.3GHz dynamic comparator with cross-coupled latches. In 2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015 [7114523] (2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VLSI-DAT.2015.7114523