Two transistor current mode active pixel sensor

Viktor Gruev, Zheng Yang, Jan Van Der Spiegel, Ralph Etienne-Cummings

Research output: Contribution to journalConference article

Abstract

A novel current mode active pixel sensor for high resolution imaging is presented. The photo pixel is composed of a photodiode and two transistors: reset and transconductance amplifier transistor. The switch transistor is moved outside the pixel, allowing for lower pixel pitch and increased linearity of the output photocurrent. The increased linearity of the image sensor has greatly reduced spatial variations across the image after correlated double sampling and the column fix pattern noise is 0.35% of the saturated current. A discussion on theoretical temporal noise limitations of this design is also presented.

Original languageEnglish (US)
Article number4253271
Pages (from-to)2846-2849
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
StatePublished - Sep 27 2007
Externally publishedYes
Event2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007 - New Orleans, LA, United States
Duration: May 27 2007May 30 2007

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Gruev, V., Yang, Z., Van Der Spiegel, J., & Etienne-Cummings, R. (2007). Two transistor current mode active pixel sensor. Proceedings - IEEE International Symposium on Circuits and Systems, 2846-2849. [4253271].