An Offset Cancelled Winner-Take-All Circuit

被引：4

作者：

Kim, Dongsoo ^{[1
]}

Cheon, Jimin ^{[1
]}

Han, Gunhee ^{[1
]}

机构：

[1] Yonsei Univ, Seoul 120749, South Korea

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2009年 / E92A卷 / 02期

关键词：

Winner-Take-ALL (WTA); offset error; offset cancellation; threshold variation; device mismatch; NETWORKS; MODE;

D O I：

10.1587/transfun.E92.A.430

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

The performance of an analog winner-take-all (WTA) circuit is affected by the corner error and the offset error. Despite the fact that the corner error can be reduced with large transconductance of the transistor, the offset error caused by device mismatch has not been completely studied. This paper presents the complete offset error analysis, and proposes low offset design guidelines and an offset cancellation scheme. The experimental results show good agreement with the theoretical analysis and the drastic improvement of the offset error.

引用

页码：430 / 435

页数：6

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