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Abstract
Voltage comparator is the only – apart from the light-to-voltage converter – analog component in the digital CMOS pixel. In this work, the influence of the analog comparator nonidealities on the performance of the digital pixel has been investigated. In particular, two versions of the digital pixel have been designed in 0.35 μm CMOS technology, each using a different type of analog comparator. The properties of both versions have been compared. The first pixel utilizes a differential comparator with the increased size and improved electrical performance. The second structure is based on a very simple non-differential comparator with a reduced size and degraded performance. Theoretical analysis of the comparator nonideality effect on the quality of the image obtained from the digital pixel matrix as well as simulation results are provided.
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- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1515/bpasts-2016-0030
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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Bulletin of the Polish Academy of Sciences-Technical Sciences
no. 64,
pages 271 - 278,
ISSN: 0239-7528 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Jendernalik W.: On analog comparators for CMOS digital pixel applications. A comparative study// Bulletin of the Polish Academy of Sciences-Technical Sciences. -Vol. 64, iss. 2 (2016), s.271-278
- DOI:
- Digital Object Identifier (open in new tab) 10.1515/bpasts-2016-0030
- Verified by:
- Gdańsk University of Technology
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