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Abstract
Computer-Aided Analysis of circuits require device models. Integrated circuits (ICs) are better analysed using their macromodels. Of the different ICs, operational amplifiers are frequently used in a variety of linear and nonlinear applications. A nonlinear macromodel for Op. Amp type μA741 is proposed in this paper. Developed model parameters are validated with the data sheet values and found satisfactory. A few applications of the use of the model are given. Macromodel results are compared with the experimental values in each case. Developed nonlinear model uses simple linear components and does not require additional software for large-signal analysis. It is developed for use with ECAP package but can be used with any other circuit analysis program as well.
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B. Ram Kumar
Ram Kumar, B. Graduated in Electronics & Telecommunication Engineering of the Univesity of Madras in the year 1973. Took Masters Degree in Electrical Engineering (M.S. by Research) of the Indian Institute of Technology, Madras in the year 1980. Working as a Deputy Design Engineer at the Design Complex, Hindustan Aeronautics Ltd., Bangalore, since 1974. His field of interest are Software and Hardware development for microprocessor-based systems.