Common‐mode rejection ratio characterisation of a broadband electro‐optical differential ESD voltage probe | Zendy

Štimac H. | Zendy; Gillon R. | Zendy; Barić A. | Zendy

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Common‐mode rejection ratio characterisation of a broadband electro‐optical differential ESD voltage probe

Author(s) -

Štimac H.,

Gillon R.,

Barić A.

Publication year - 2019

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2019.1820

Subject(s) - broadband , common mode signal , voltage , optoelectronics , materials science , electrical engineering , mode (computer interface) , electronic engineering , common mode rejection ratio , differential (mechanical device) , engineering , telecommunications , computer science , cmos , operational amplifier , amplifier , digital signal processing , analog signal , aerospace engineering , operating system

The concept of an isolated differential voltage measurement system is presented. The proposed probe circuit is designed for broadband measurement of electrostatic discharge (ESD) waveforms. The electro‐optical conversion of the measured signal allows the system to operate in an electromagnetically polluted environment. The signal capture and signal processing stages of the system are separated. Characteristics of the system in terms of differential‐mode and common‐mode signal sensing are discussed. The common‐mode rejection ratio (CMRR) of the system is explored in the gigahertz frequency range. Given the low cost, the system can be implemented both as a standalone probe or as a part of an integrated circuit characterisation and test environment.

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