Pesavento, Alberto and Horiuchi, Timothy K. and Diorio, Chris and Koch, Christof (2002) Adaptation of Current Signals with Floating-Gate Circuits. Analog Integrated Circuits and Signal Processing, 30 (2). pp. 137-147. ISSN 0925-1030. http://resolver.caltech.edu/CaltechAUTHORS:20130816-103219749
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Abstract
In this paper we present a new, adaptive spatial-derivative circuit for CMOS image sensors. The circuit removes its offset as a natural part of its operation using a combination of electron tunneling and hot-electron injection to add or remove charge on a floating-gate of an auto-zeroing amplifier. We designed, fabricated and successfully tested a chip with the circuit. Test results show that the circuit reduces the offsets by more than an order of magnitude.
| Item Type: | Article | |||||||||
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| Additional Information: | c2002 Kluwer Academic Publishers. Received December 24, 1999; Accepted January 16, 2001. This work was supported by a Learning and Intelligent Systems (LIS) Grant (BES-9720353) from the National Science Foundation (NSF) and by the NSF supported Center for Neuromorphic Systems Engineering at Caltech. | |||||||||
| Group: | Koch Laboratory, KLAB | |||||||||
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| Subject Keywords: | CMOS visual sensors, fixed-pattern noise removal, floating-gate circuits | |||||||||
| Record Number: | CaltechAUTHORS:20130816-103219749 | |||||||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20130816-103219749 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 40489 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | KLAB Import | |||||||||
| Deposited On: | 11 Jan 2008 18:25 | |||||||||
| Last Modified: | 09 Jan 2016 02:14 |
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