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Decision Levels and Resolution for Low-Power Winner-Take-All Circuit
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Decision Levels and Resolution for Low-Power Winner-Take-All Circuit
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Journal Article
Decision Levels and Resolution for Low-Power Winner-Take-All Circuit
2023
Overview
Sensors in many applications must select the largest element in a sequence of currents. This can be performed in an analog way by the Winner-Take-All (WTA) circuit. This paper considers the classic version of the WTA Lazzaro circuit, working with MOS devices in a subthreshold regime. Since the separation of the gainer by analytically computable “decision levels” has recently been introduced, this paper aims to numerically verify and discuss these levels and their dependence on circuit and device parameters. For VT, the threshold voltage of MOS devices, which is primarily responsible for differences between components (mismatch), its relationship with the output voltages is theoretically demonstrated and numerically checked.
Publisher
MDPI AG,MDPI
Subject
