Incremental Delta-Sigma ADC with Reduced Conversion Cycles via Quantization-Skip

Amgad Ghonem*, Amine Bermak, Bo Wang

*Corresponding author for this work

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

Abstract

This paper presents a technique to effectively reduce the number of conversion cycles of the 1st-order incremental delta-sigma data converter (IADC1). Typically, an IADC1 requires 2N cycles to achieve N-bit resolution if using a sinc1 filter for reconstruction. The proposed quantization-skip technique can effectively reduce the average conversion cycles and, therefore, the energy consumption of an IADC1. Specifically, during conversion, the quantizer output is predicted using the previous bitstream pattern to achieve automatic bitstream fill-in without analog domain operations. Behavioral level simulations show that this technique can reduce the conversion cycles by 24% on average (maximum reduction of ∼50%) with little digital overhead.

Original languageEnglish
Title of host publicationISCAS 2025 - IEEE International Symposium on Circuits and Systems, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350356830
DOIs
Publication statusPublished - 28 May 2025
Event2025 IEEE International Symposium on Circuits and Systems, ISCAS 2025 - London, United Kingdom
Duration: 25 May 202528 May 2025

Publication series

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

Conference

Conference2025 IEEE International Symposium on Circuits and Systems, ISCAS 2025
Country/TerritoryUnited Kingdom
CityLondon
Period25/05/2528/05/25

Keywords

  • bitstream fill-in
  • IADC
  • Incremental delta-sigma ADC
  • quantization-skip

Fingerprint

Dive into the research topics of 'Incremental Delta-Sigma ADC with Reduced Conversion Cycles via Quantization-Skip'. Together they form a unique fingerprint.

Cite this