A Passive Single-Ended-to-Differential-Converter with SAR ADC Achieving 6.1fJ/Conversion-Step

Mariska van der Struijk, Kevin Pelzers, Pieter Harpe

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

2 Citations (Scopus)

Abstract

This paper proposes a passive switched-capacitor single-ended-to-differential-converter (SDC) as a front-end of a differential SAR ADC to enable digitization of single-ended signals. Compared to active SDC solutions or single-ended SAR ADCs, the proposed solution offers the smallest total capacitance as well as best power efficiency and least chip area. A noise analysis further shows that the passive SDC does not result in a noise penalty of the overall system. A prototype implementation in 65nm CMOS achieves a figure-of-merit of 6.1fJ/conversion-step at 20MS/s, while reaching an SNDR of 54.7dB up to Nyquist and occupying a chip area of only 60μm × 36μm.

Original languageEnglish
Title of host publication2021 IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers
Pages288-291
Number of pages4
ISBN (Electronic)9781665424615
DOIs
Publication statusPublished - 13 Sept 2021
Event2021 IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2021 - Virtual, East Lansing, United States
Duration: 9 Aug 202111 Aug 2021

Conference

Conference2021 IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2021
Country/TerritoryUnited States
CityVirtual, East Lansing
Period9/08/2111/08/21

Bibliographical note

Funding Information:
This work is part of the POSITION-II project funded by the ECSEL Joint Undertaking under grant number Ecsel-783132-Position-II-2017-IA.

Fingerprint

Dive into the research topics of 'A Passive Single-Ended-to-Differential-Converter with SAR ADC Achieving 6.1fJ/Conversion-Step'. Together they form a unique fingerprint.

Cite this