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Proceedings Paper

CMOS digital pixel sensors: technology and applications
Author(s): Orit Skorka; Dileepan Joseph
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Paper Abstract

CMOS active pixel sensor technology, which is widely used these days for digital imaging, is based on analog pixels. Transition to digital pixel sensors can boost signal-to-noise ratios and enhance image quality, but can increase pixel area to dimensions that are impractical for the high-volume market of consumer electronic devices. There are two main approaches to digital pixel design. The first uses digitization methods that largely rely on photodetector properties and so are unique to imaging. The second is based on adaptation of a classical analog-to-digital converter (ADC) for in-pixel data conversion. Imaging systems for medical, industrial, and security applications are emerging lower-volume markets that can benefit from these in-pixel ADCs. With these applications, larger pixels are typically acceptable, and imaging may be done in invisible spectral bands.

Paper Details

Date Published: 16 April 2014
PDF: 14 pages
Proc. SPIE 9060, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2014, 90600G (16 April 2014); doi: 10.1117/12.2044808
Show Author Affiliations
Orit Skorka, Univ. of Alberta (Canada)
Dileepan Joseph, Univ. of Alberta (Canada)


Published in SPIE Proceedings Vol. 9060:
Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2014
Vijay K. Varadan, Editor(s)

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