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Title: Analog multiplier using operational amplifiers
Authors: Riewruja, Vanchai
Rerkratn, Apinai
Keywords: Analog multiplier;Opamp;Quarter-square technique;Squaring circuit;Class AB configuration
Issue Date: Jan-2010
Publisher: CSIR
Abstract: Simple circuit technique for implementing four-quadrant analog multiplier has been presented. The proposed circuit requires only operational amplifier (opamp) as the active element. The realization method is based on the quarter-square technique where a square is provided from the inherent quadratic behaviour of class-AB output stage of opamp. Experimental results showing the circuit performance are described. The wore-case linearity error and total harmonic distortion for maximum operating range are about 0.23 and 1.02%, respectively.
Page(s): 67-70
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.48(01) [January 2010]

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