Title :
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
fDate :
5/1/2003 12:00:00 AM
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;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
DOI :
10.1109/TEMC.2003.811312
