A 12.4fJ-FoM 4-Bit Flash ADC Based on the StrongARM Architecture

Abdullah S. Almansouri, Abdullah Alturki, Hossein Fariborzi, Khaled N. Salama, Talal Al-Attar

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

2 Scopus citations

Abstract

This work proposes an efficient 4-bit flash ADC based on the StrongARM comparator architecture. The proposed design eliminates the need for the resistive ladder by systematically modifying the sizing of the input differential pair of each comparator. As a consequence, the area and the power consumed within the ladder is eliminated. Furthermore, a Helpee StrongARM circuit is introduced which enables operation at an input voltage below the threshold voltage of the transistor. An enhanced 1-out-of-15 decoder converts the thermometer code from the StrongARM and the Helpee StrongARM comparators into a 1-out-of-n code. The proposed 4-bit flash ADC architecture, simulated in 90nm standard CMOS technology, consumes 292 μ W at 1.6 GHz sampling frequency, has an ENOB of 3.88 and FoM of 12.4 fJ/conv.step.

Original languageEnglish (US)
Title of host publicationPRIME 2018 - 14th Conference on Ph.D. Research in Microelectronics and Electronics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages37-40
Number of pages4
ISBN (Print)9781538653869
DOIs
StatePublished - Aug 8 2018
Event14th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2018 - Prague, Czech Republic
Duration: Jul 2 2018Jul 5 2018

Publication series

NamePRIME 2018 - 14th Conference on Ph.D. Research in Microelectronics and Electronics

Conference

Conference14th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2018
Country/TerritoryCzech Republic
CityPrague
Period07/2/1807/5/18

Keywords

  • Comparator
  • Data converter
  • Flash ADC
  • Helpee StrongARM
  • StrongARM

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'A 12.4fJ-FoM 4-Bit Flash ADC Based on the StrongARM Architecture'. Together they form a unique fingerprint.

Cite this