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Improved Design Procedure for Two-Stage CMOS Op Amp Employing Current Buffer

Authors :
Chaiyan Chanapromma
Jirayuth Mahattanakul
Source :
2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON).
Publication Year :
2020
Publisher :
IEEE, 2020.

Abstract

In this paper an improved version of the design procedure of two-stage CMOS operational amplifier employing a Miller capacitor and a current buffer is presented. Unlike the op amp obtained from the previously reported design procedure, in which the unity gain frequency is approximated by the gain bandwidth product, the resulting op amp from the proposed procedure has frequency response characteristics much closer to the desired values. Design example of the proposed procedure is given and the results compared to the previous method.

Details

Database :
OpenAIRE
Journal :
2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)
Accession number :
edsair.doi...........04c07fca602e2bd97d5ca9a73ac86e73
Full Text :
https://doi.org/10.1109/ecti-con49241.2020.9158307