High-Speed Comparator Design for RF-to-Digital Receivers

Ahmed Sakr, Aziza I. Hussein, Ghazal A. Fahmy, Mahmoud A. Abdelghany

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

There is an increasing research interest in digitizing the radio frequency (RF) signal directly after the antenna to obtain a flexible wireless software-defined radio (SDR). This is mainly because the next generations, 4G and 5G standards, are allocated different bands for the same standard due to the worsening shortage of the available spectrum. In this paper a high-speed two-stage dynamic CMOS-latched comparator is designed using 65 nm CMOS process. It achieves sampling frequency up to 10 GHz with resolution of 10.11 bits and 13.28 bits at 1 GHz sampling clock while keeping the propagation delay less than 64 psec. for 1 mV input voltage difference. The proposed design targets SDRs based on pulse-width modulation (PWM) and RF sampling analog-to-digital converters (ADCs).

Original languageEnglish
Title of host publicationProceedings of 2020 37th National Radio Science Conference, NRSC 2020
EditorsRowayda Sadek, Mohamed Ashour
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages207-215
Number of pages9
ISBN (Electronic)9781728168197
DOIs
StatePublished - 8 Sep 2020
Externally publishedYes
Event37th National Radio Science Conference, NRSC 2020 - Cairo, Egypt
Duration: 8 Sep 202010 Sep 2020

Publication series

NameNational Radio Science Conference, NRSC, Proceedings
Volume2020-September

Conference

Conference37th National Radio Science Conference, NRSC 2020
Country/TerritoryEgypt
CityCairo
Period8/09/2010/09/20

Keywords

  • Comparator
  • Dynamic
  • High-speed
  • RF-to-digital
  • SDR

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