Mismatch Compensation in Winner-Take-All (WTA) Circuits

被引：5

作者：

Sarje, Anshu ^{[1
]}

Abshire, Pamela ^{[1
]}

机构：

[1] Univ Maryland, Dept Elect & Comp Engn, Syst Res Inst, College Pk, MD 20742 USA

来源：

2009 52ND IEEE INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1 AND 2 | 2009年

关键词：

D O I：

10.1109/MWSCAS.2009.5236127

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Winner-Take-All (WTA) circuits are commonly used in neuromorphic design for selecting the highest input among a group of alternatives. Device fabrication introduces mismatch in circuits due to random errors in doping as well as errors in physical dimensions. Mismatch biases the circuit and results in incorrect decision making. In this paper, we analyze and characterize behavior of a sub-threshold WTA circuit due to mismatch introduced in the threshold voltage and scaling current of a transistor. Further, we propose two mismatch compensation techniques using floating gate programming. We compare the I-V characteristics before and after compensation in both techniques.

引用

页码：168 / 171

页数：4

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