Design of a sample-and-hold analog front end for a 56Gb/s PAM-4 receiver using 65nm CMOS

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

We1 present an analog front end for a PAM-4 clock and data recovery circuit designed in 65nm CMOS. The front end consists of an arrangement of 8 interleaved master and slave sample-and-hold circuits, to be followed by an array of dynamic comparators. Each interleaved channel contains two wideband buffers with accurate bias and common-mode control circuitry to drive the sample-and-hold circuits. The worst-case (across process, temperature and supply voltage corners) aperture time of the sampling front end is 17ps for a differential input voltage swing of 200mV, sufficient to resolve a 56Gb/s (28Gbaud) PAM-4 signal. The power consumption is 55mW from 1.0V and 1.2V supply voltages.

Original languageEnglish
Title of host publication2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1606-1609
Number of pages4
ISBN (Electronic)9781479983919
DOIs
Publication statusPublished - 27 Jul 2015
EventIEEE International Symposium on Circuits and Systems, ISCAS 2015 - Lisbon, Portugal
Duration: 24 May 201527 May 2015

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2015-July
ISSN (Print)0271-4310

Conference

ConferenceIEEE International Symposium on Circuits and Systems, ISCAS 2015
Country/TerritoryPortugal
CityLisbon
Period24/05/1527/05/15

Keywords

  • Analog front end
  • PAM-4
  • pulse-amplitude modulation
  • serial link
  • transceiver

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