Title :
Nonlinear modelling of f.e.t.-input operational amplifiers
Author :
Bowron, P. ; Mohamed, Amr
Author_Institution :
University of Bradford, Postgraduate School of Electrical & Electronic Engineering, Bradford, UK
Abstract :
A square-law model for f.e.t.-input operational amplifiers is applied, by means of describing functions, to the evaluation of slew-induced distortion in a simple active filter. The computed frequency responses are validated by measurements at large signal levels.
Keywords :
active filters; junction gate field effect transistors; nonlinear network analysis; operational amplifiers; FET input operational amplifiers; JFET; active filters; frequency responses; large signal levels; nonlinear modelling; operational amplifiers; slew induced distortion; square law model;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790342
