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Adaptation of Current Signals with Floating-Gate Circuits

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. doi:10.1023/A:1013703711427.

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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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Koch, Christof0000-0001-6482-8067
Additional Information:© 2002 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)
Funding AgencyGrant Number
Center for Neuromorphic Systems Engineering, CaltechUNSPECIFIED
Subject Keywords:CMOS visual sensors, fixed-pattern noise removal, floating-gate circuits
Issue or Number:2
Record Number:CaltechAUTHORS:20130816-103219749
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Official Citation:Pesavento, A., Horiuchi, T., Diorio, C. et al. Analog Integrated Circuits and Signal Processing (2002) 30: 137.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:40489
Deposited By: KLAB Import
Deposited On:11 Jan 2008 18:25
Last Modified:09 Nov 2021 23:49

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