Ultra Low-Power Analog Median Filters

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Date
2013-09
Authors
Diaz-Sanchez, Alejandro
Lemus-Lopez, Javier
Rocha Perez, Jose Miguel
Ramirez-Angulo, Jaime
Molinar Solis, Jesus Ezequiel
Vazquez-Leal, Hector
ORCID
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Referee
Mark
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Volume Title
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Společnost pro radioelektronické inženýrství
Abstract
The design and implementation of three analog median filter topologies, whose transistors operate in the deep weak-inversion region, is described. The first topology is a differential pairs array, in which drain currents are driven into two nodes in a differential fashion, while the second topology is based on a wide range OTA, which is used to maximize the dynamic range. Finally, the third topology uses three range-extended OTAs. The proposed weak-inversion filters were designed and fabricated in ON Semiconductor 0.5 micrometer technology through MOSIS. Experimental results of three-input fabricated prototypes for all three topologies are show, where power consumptions of 90nW in the first case, and 270nW in the other two cases can be noticed. A dual power supply +/-1.5 Volts were used.
Description
Citation
Radioengineering. 2013, vol. 22, č. 3, s. 916-920. issn 1210-2512
http://www.radioeng.cz/fulltexts/2013/13_03_0916_0920.pdf
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Peer-reviewed
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Published version
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en
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Creative Commons Attribution 3.0 Unported License
http://creativecommons.org/licenses/by/3.0/
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