A balanced CMOS OpAmp with high EMI immunity

CMOS; Analog integrated circuits; CMOS integrated circuits; Differential amplifiers; Electric current regulators; Electromagnetic compatibility; Electromagnetic pulse; Electromagnetic wave interference; Signal interference; Analysis and simulation; CMOS operational amplifiers; Input terminals; Miller operational amplifiers; Offset voltage; Phase margins; Power supply rejection; Unity-gain frequencies; Operational amplifiers

Abstract :

[en] In this paper a balanced CMOS operational amplifier which has higher electromagnetic interference (EMI) immunity compared to a double differential amplifier and standard Miller operational amplifier, has been introduced. The proposed amplifier has better EMI immunity, from 1 MHz - 1 GHz, by keeping specifications such as gain, -3 dB bandwidth, phase margin, power supply rejection and unity gain frequency same as in the Miller operational amplifier. Analysis and simulation results are compared when an EMI signal of 1.1 Vpp applied at the input terminal. The simulation results show that the EMI-induced offset voltage is lesser over a wide range of frequencies for the proposed amplifier. © 2014 IEEE.

Disciplines :

Electrical & electronics engineering

Author, co-author :

Subrahmanyam, B.; IITB, Monash Research Academy, Indian Institute of Technology, Bombay, India

Das, D.; Department of Electrical Engineering, Indian Institute of Technology, Bombay, India

Baghini, M. S.; Department of Electrical Engineering, Indian Institute of Technology, Bombay, India

Redouté, Jean-Michel ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes microélectroniques intégrés

Language :

English

Title :

A balanced CMOS OpAmp with high EMI immunity

Publication date :

2014

Event name :

2014 International Symposium on Electromagnetic Compatibility, EMC Europe 2014

Event date :

1 September 2014 through 4 September 2014

Audience :

International

Journal title :

IEEE International Symposium on Electromagnetic Compatibility

ISSN :

1077-4076

Publisher :

Institute of Electrical and Electronics Engineers Inc.

Pages :

703-708

Peer reviewed :

Peer reviewed

Funders :

INTEL
Government of India

Commentary :

9781479932252

Available on ORBi :

since 02 July 2019

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Bibliography

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