An 8/4-bit reconfigurable digital pixel array with on-chip non-uniform quantizer

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

6 Citations (Scopus)

Abstract

A CMOS Digital Pixel Sensor (DPS) with reconfigurable coding (8/4-bit) and spatial (32 × 32/64 × 32) resolutions is proposed in this paper. The sensor is based on time domain coding which converts the photocurrent into an inversely proportional pulse width (PWM) signal. The 8-bit conversion mode is used for high quality imaging while the 4-bit conversion mode provides a shorter conversion time and a 2-fold increase in spatial resolution. In order to overcome the non-linearity introduced in the time domain PWM coding, a linearization procedure based on Non-Uniform Time domain quantizer is proposed. The reconfiguration features of the imager are demonstrated through experimental results obtained from a prototype designed using 1-poly, 5 metal CMOS 0.35μm n-well standard process.

Original languageEnglish
Title of host publicationProceedings of the IEEE 2005 Custom Integrated Circuits Conference
Pages220-223
Number of pages4
DOIs
Publication statusPublished - 1 Dec 2005
EventIEEE 2005 Custom Integrated Circuits Conference - San Jose, CA, United States
Duration: 18 Sep 200521 Sep 2005

Publication series

NameProceedings of the Custom Integrated Circuits Conference
Volume2005
ISSN (Print)0886-5930

Other

OtherIEEE 2005 Custom Integrated Circuits Conference
CountryUnited States
CitySan Jose, CA
Period18/9/0521/9/05

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Bermak, A. (2005). An 8/4-bit reconfigurable digital pixel array with on-chip non-uniform quantizer. In Proceedings of the IEEE 2005 Custom Integrated Circuits Conference (pp. 220-223). [1568647] (Proceedings of the Custom Integrated Circuits Conference; Vol. 2005). https://doi.org/10.1109/CICC.2005.1568647