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International Journal of Advanced Engineering, Management and Science

Distortion Analysis of CMOS Based Analog Circuits

( Vol-2,Issue-6,June 2016 )

Author(s): Suman Kumar Choudhary, Sathe R. B., Dongare M.P., Sonawane R. B.

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Page No: 633-636
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CMOS circuits, frequency response, nonlinear distortion, THD, TSMC.


The amplifiers are the vital part of the analog circuit designs. The linearity of the CMOS is of most important concern in the design of many analog circuits. There are several aspects regarding nonlinear distortion analysis in analog circuits implemented in CMOS technology. Basically, the investigations visualize the nature of the total harmonic distortion (THD) dependence on the amplitude and frequency of the input signals. In this paper, the basic building blocks of analog integrated circuits such as Common source amplifier with diode connected load and Differential amplifier with current mirror load have been presented for distortion analysis. The MOSFET model used for simulation is BSIM3 SPICE model from 0.13-μm and BSIM4 SPICE model from 22-μm CMOS process technology. HSPICE circuit simulator tool is used for distortion analysis of CMOS circuits. It is evident that the above function gives remarkable insight of the nonlinear behavior of the considered circuits and it is worth considering for further investigations.

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