An 8-bit 80MS/s 2b/cycle SAR ADC for Sensor Application

Lei Zhang, Wenzhong Lou, Yige Gao

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

2 Citations (Scopus)

Abstract

This paper presents an 8-bit, 80MS/s Successive Approximation Register analog-to-digital converter (SAR ADC) with 2bit/cycle structure for sensor application. By using two capacitor-DAC arrays, S-DAC and R-DAC, the proposed SAR ADC can obtain 2-bit in one comparison cycle. With split-capacitor structure and monotonic switching strategy, two DACs reduce the number of capacitors and save the ADC power consumption. The proposed asynchronous control logic speeds up the ADC. The proposed ADC achieves 46.17dB SNDR at 80MS/s rate with 1.8V supply voltage in 180nm CMOS process.

Original languageEnglish
Title of host publication2018 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538673027
DOIs
Publication statusPublished - 2 Jul 2018
Event12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Hangzhou, China
Duration: 3 Dec 20186 Dec 2018

Publication series

Name2018 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Proceedings

Conference

Conference12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018
Country/TerritoryChina
CityHangzhou
Period3/12/186/12/18

Keywords

  • 2b/cycle
  • SAR ADC
  • analog-to-digital converter
  • split-capacitor

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