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Towards analog implementations of PWL two‐dimensional non‐linear functions
Author(s) -
Storace Marco,
Parodi Mauro
Publication year - 2005
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.309
Subject(s) - block (permutation group theory) , piecewise linear function , electrical element , linear circuit , computer science , cmos , network analysis , algorithm , equivalent circuit , topology (electrical circuits) , mathematics , electronic engineering , engineering , electrical engineering , voltage , mathematical analysis , geometry , combinatorics
This paper deals with the circuit implementation of non‐linear algebraic bivariate functions. The synthesis procedure is based on a piecewise‐linear approximation technique and on a corresponding circuit architecture, whose basic element is a circuit block with the input/output function y ( x ) = max(0; x ). Some known CMOS circuit structures that can be used to obtain such a block are considered, and their main advantages and drawbacks are pointed out. The static and dynamic features of both the single circuit block and the overall architecture for two‐dimensional PWL functions are illustrated by way of examples. Copyright © 2005 John Wiley & Sons, Ltd.