DocumentCode
1401905
Title
High fill factor CMOS APS sensor with extended output range
Author
Teixeira, E.C. ; Santos, F.V. ; Mesquita, A.C.
Author_Institution
Lab. de Projeto de Circuitos -LPC, Fed. Univ. of Rio de Janeiro-UFRJ, Rio de Janeiro, Brazil
Volume
46
Issue
25
fYear
2010
Firstpage
1658
Lastpage
1659
Abstract
A new active pixel sensor (APS) circuit architecture with increased signal range is proposed. This feature contributes to improvement of the dynamic range of the imager, since it is effectively a way to increase the full well capacity, which is reduced as pixel pitch decreases. The proposed solution does not degrade the fill factor, and can be applied to most existing CMOS APS pixels. The new readout topology is described and experimental results for a 64 × 64 3T photodiode pixel array are given.
Keywords
CMOS image sensors; photodiodes; active pixel sensor circuit architecture; extended output range; high fill factor CMOS APS sensor; photodiode pixel array; readout topology;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2010.2351
Filename
5665817
Link To Document