Analysis of the effect of radio frequency interference on the DC performance of bipolar operational amplifiers

Author

Atti, Muhammad Taher Abuelma

Author_Institution

King Fahd Univ. of Pet. & Minerals, Dhahran, Saudi Arabia

Volume

45

Issue

2

fYear

2003

fDate

5/1/2003 12:00:00 AM

Firstpage

453

Lastpage

458

Abstract

Fourier-series approximations are obtained for the input/output characteristic of the bipolar differential amplifier with active load and the asymmetrical differential amplifier. Using these approximations, the DC voltage offset of a differential amplifier subjected to radio-frequency interference (RFI) can be studied and analytical expressions are obtained. These expressions can help in optimizing the parameters of the differential amplifier to minimize the offset voltage resulting from the RFI.

Keywords

Fourier series; differential amplifiers; network analysis; operational amplifiers; radiofrequency interference; DC performance; DC voltage offset; EMI; Fourier series approximations; RFI; active load; asymmetrical differential amplifier; bipolar differential amplifier; bipolar opamps; bipolar operational amplifiers; electromagnetic interference; input/output characteristic; offset voltage minimization; radio-frequency interference; Conductors; Crosstalk; Frequency; Impedance; Operational amplifiers; Performance analysis; Radiofrequency amplifiers; Radiofrequency interference; Symmetric matrices; Wires;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/TEMC.2003.811312

Filename

1200892