An instrumentation amplifier input circuit with a high immunity to EMI

Author

Redouté, Jean-Michel ; Steyaert, Michiel

Author_Institution

Dept. ESAT-MICAS, Katholieke Univ. Leuven, Leuven

fYear

2008

fDate

8-12 Sept. 2008

Firstpage

1

Lastpage

6

Abstract

This paper presents an instrumentation amplifier input circuit exhibiting a high degree of immunity against conducted common-mode electromagnetic interferences (EMI) which are injected into its inputs. The proposed input circuit achieves a high common-mode EMI rejection by minimizing the impact of mismatch. A case study illustrates the theoretical analyses, and evaluates the superior performances of the proposed input structure by comparing these to the results which are obtained using a classic approach.

Keywords

electromagnetic interference; instrumentation amplifiers; conducted common-mode electromagnetic interference; high common-mode EMI rejection; instrumentation amplifier input circuit; Circuits; Data acquisition; Electromagnetic compatibility; Electromagnetic compatibility and interference; Electromagnetic interference; Immunity testing; Instruments; Sensor systems; Voltage; Wires; Electromagnetic interference; common-mode rejection ratio; instrumentation amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility - EMC Europe, 2008 International Symposium on

Conference_Location

Hamburg

Print_ISBN

978-1-4244-2737-6

Electronic_ISBN

978-1-4244-2737-6

Type

conf

DOI

10.1109/EMCEUROPE.2008.4786901

Filename

4786901