Evaluation of operational amplifier immunity by means of Weibull distribution

Author

Fernandez-Garcia, Raul ; Gil, Iñigo

Author_Institution

Dept. of Electron. Eng., Univ. Politec. de Catalunya, Terrassa, Spain

fYear

2013

fDate

2-6 Sept. 2013

Firstpage

220

Lastpage

223

Abstract

The immunity of operational amplifiers is a trend topic for electromagnetic compatibility EMC community. Radiofrequency interference is usually applied to the operation amplifier and the voltage offset is monitored as a parameter to evaluate the EMC degradation. However, this method does not provide enough information to know the probability of failure to electromagnetic interference of the devices. In this paper, an alternative statistical analysis based on the Weibull distribution is used to analyze the electromagnetic immunity performance of operational amplifiers under different frequency interferences and modulation index. The results confirm the feasibility of the Weibull distribution to evaluate the radiofrequency interference RFI behavior.

Keywords

Weibull distribution; immunity testing; operational amplifiers; radiofrequency interference; EMC community; EMC degradation; Weibull distribution; electromagnetic compatibility; electromagnetic immunity performance; electromagnetic interference; frequency interferences; modulation index; operational amplifiers immunity; radiofrequency interference; statistical analysis; voltage offset; Frequency modulation; Immunity testing; Operational amplifiers; Weibull distribution; Operational amplifier; Weibull distribution; electromagnetic interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (EMC EUROPE), 2013 International Symposium on

Conference_Location

Brugge

ISSN

2325-0356

Type

conf

Filename

6653231