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. 2013 Sep 18;13(9):12632–12647. doi: 10.3390/s130912632

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© 2013 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 1. — (a) Block diagram of the pixel; (b) Layout of the pixel (I/V for Current to Voltage Converter, SF for Source Follower, HDA = Hysteretic Differentiator Amplifier, GMC for Transconductance-Capacitance Low Pass Filter).