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
Volume2005
DOIs
Publication statusPublished - 2005
Externally publishedYes
EventIEEE 2005 Custom Integrated Circuits Conference - San Jose, CA, United States
Duration: 18 Sep 200521 Sep 2005

Other

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

Fingerprint

Pixels
Pulse width modulation
Sensors
Photocurrents
Linearization
Image sensors
Imaging techniques
Metals

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 (Vol. 2005, pp. 220-223). [1568647] https://doi.org/10.1109/CICC.2005.1568647

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

Proceedings of the IEEE 2005 Custom Integrated Circuits Conference. Vol. 2005 2005. p. 220-223 1568647.

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

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. vol. 2005, 1568647, pp. 220-223, IEEE 2005 Custom Integrated Circuits Conference, San Jose, CA, United States, 18/9/05. https://doi.org/10.1109/CICC.2005.1568647
Bermak A. An 8/4-bit reconfigurable digital pixel array with on-chip non-uniform quantizer. In Proceedings of the IEEE 2005 Custom Integrated Circuits Conference. Vol. 2005. 2005. p. 220-223. 1568647 https://doi.org/10.1109/CICC.2005.1568647
Bermak, Amine. / An 8/4-bit reconfigurable digital pixel array with on-chip non-uniform quantizer. Proceedings of the IEEE 2005 Custom Integrated Circuits Conference. Vol. 2005 2005. pp. 220-223
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