Analysis of active pixel sensor readout circuit

Khaled Salama; Abbas El Gamal

doi:10.1109/TCSI.2003.813977

Analysis of active pixel sensor readout circuit

Khaled Salama^*, Abbas El Gamal

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

This brief provides a detailed analysis of active pixel sensor, pixel and column circuit. Surprisingly, we find that shorter readout times can be achieved by reducing the bias current and hence reducing energy consumption. We investigate the effect of nonidealities on the readout operation. We find that when the follower transistor channel-length modulation is taken into consideration, delay is reduced, which implies that shorter length transistors can be used in the pixel. We show that readout time decreases linearly with technology scaling.

Original language	English (US)
Pages (from-to)	941-944
Number of pages	4
Journal	IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
Volume	50
Issue number	7
DOIs	https://doi.org/10.1109/TCSI.2003.813977
State	Published - Jul 2003
Externally published	Yes

Keywords

Active pixel sensor (APS)
CMOS image sensor
High-speed imaging
Readout electronics

ASJC Scopus subject areas

Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/TCSI.2003.813977

Cite this

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AB - This brief provides a detailed analysis of active pixel sensor, pixel and column circuit. Surprisingly, we find that shorter readout times can be achieved by reducing the bias current and hence reducing energy consumption. We investigate the effect of nonidealities on the readout operation. We find that when the follower transistor channel-length modulation is taken into consideration, delay is reduced, which implies that shorter length transistors can be used in the pixel. We show that readout time decreases linearly with technology scaling.

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KW - CMOS image sensor

KW - High-speed imaging

KW - Readout electronics

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Analysis of active pixel sensor readout circuit

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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