Structural optimization of differential stage in operational amplifiers

Author

Krutchinsky, Sergei G. ; Tsybin, Mikhail S. ; Titov, Alexey E.

Author_Institution

Dept. of Autom. Control Syst., Southern Fed. Univ., Taganrog, Russia

fYear

2010

fDate

7-10 Sept. 2010

Firstpage

205

Lastpage

208

Abstract

Effective differential cascades structure with the minimum transfer coefficient of common-mode signal and the maximum differential gain coefficient is offered enough on the basis of results of the generalized structure analysis of electronic schemes with semi-conductor components. It is shown that application of additional feedback compensating common-mode signal allows obtaining circuits of input stages with rather high quality values. Results of modeling and comparative research of schematic circuits for technological process SGB25VD are shown.

Keywords

operational amplifiers; common-mode signal; differential cascades structure; electronic schemes; generalized structure analysis; maximum differential gain coefficient; minimum transfer coefficient; operational amplifiers; schematic circuits; semiconductor components; structural optimization; technological process SGB25VD; Bipolar transistors; Equations; Gain; Integrated circuit modeling; Mathematical model; Resistance; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals and Electronic Systems (ICSES), 2010 International Conference on

Conference_Location

Gliwice

Print_ISBN

978-1-4244-5307-8

Electronic_ISBN

978-83-9047-4-2

Type

conf

Filename

5595215