Beta expansions: A new approach to digitally corrected A/D conversion

I. Daubechies, R. DeVore, C. S. Güntürk, V. A. Vaishampayan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We introduce a new architecture for pipelined (and also algorithmic) A/D converters that give exponentially accurate conversion using inaccurate comparators. An error analysis of a sigma-delta converter with an imperfect comparator and a constant input reveals a self-correction property that is not inherited by the successive refinement quantization algorithm that underlies both pipelined multistage A/D converters as well as algorithmic A/D converters. Motivated by this example, we introduce a new A/D converter- the Beta Converter-which has the same self-correction property as a sigma-delta converter but which exhibits higher order (exponential) accuracy with respect to the bit rate as compared to a sigma-delta converter, which exhibits only polynomial accuracy.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE International Symposium on Circuits and Systems
Volume2
StatePublished - 2002
Event2002 IEEE International Symposium on Circuits and Systems - Phoenix, AZ, United States
Duration: May 26 2002May 29 2002

Other

Other2002 IEEE International Symposium on Circuits and Systems
CountryUnited States
CityPhoenix, AZ
Period5/26/025/29/02

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Beta expansions: A new approach to digitally corrected A/D conversion'. Together they form a unique fingerprint.

  • Cite this

    Daubechies, I., DeVore, R., Güntürk, C. S., & Vaishampayan, V. A. (2002). Beta expansions: A new approach to digitally corrected A/D conversion. In Proceedings - IEEE International Symposium on Circuits and Systems (Vol. 2)