A micropower current-mode CMOS function approximation circuit

Author

Manaresi, N. ; Rovatti, R. ; Franchi, E. ; Baccarani, G.

Author_Institution

Dipt. di Elettronica Inf. e Sistemistica, Bologna Univ., Italy

fYear

1999

fDate

1999

Firstpage

290

Lastpage

293

Abstract

A current-mode weak-inversion circuit for analog function approximation is proposed. It is based on the fuzzy logic paradigm and exploits a modular architecture with respect to the number of inputs and the number of rules. Simulation results show that a 2-input, 1 output transcendental function can be approximated with a 50% RMS error at the expense of 5 μW of power consumption with a 3.3 V supply

Keywords

CMOS analogue integrated circuits; analogue processing circuits; current-mode circuits; function approximation; function generators; fuzzy logic; integrated circuit design; low-power electronics; nonlinear functions; 2-input 1 output transcendental function; 2-input, 1 output transcendent function; 3.3 V; 5 muW; RMS error; analog function approximation; current-mode CMOS function approximation circuit; current-mode weak-inversion circuit; defuzzification; fuzzification; fuzzy logic paradigm; inference; low-power applications; modular architecture; nonlinear function synthesis; power consumption; simulation results; Circuit simulation; Circuit synthesis; Computer architecture; Energy consumption; Function approximation; Fuzzy logic; MOSFETs; Neodymium; Synthesizers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Technology, Systems, and Applications, 1999. International Symposium on

Conference_Location

Taipei

ISSN

1524-766X

Print_ISBN

0-7803-5620-9

Type

conf

DOI

10.1109/VTSA.1999.786057

Filename

786057