<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This paper presents a comparative EMI susceptibility study of different integrated operational transconductance amplifier (OTA) topologies. We analyzed conventional well-known amplifier topologies based on the Miller OTA and folded cascode concepts with lower power consumption. The output dc voltage shifts induced by power supply and input common mode high frequency disturbances are presented. On top of the EMI susceptibility comparison, we discuss PSRR and CMRR within large and small excitation signal with a new simulation setup. Even more, the back-gate connections of differential MOS pair in OTA input stage are investigated for EMI susceptibility impact as well.</p>
</abstract>

This paper presents a comparative EMI susceptibility study of different integrated operational transconductance amplifier (OTA) topologies. We analyzed conventional well-known amplifier topologies based on the Miller OTA and folded cascode concepts with lower power consumption. The output dc voltage shifts induced by power supply and input common mode high frequency disturbances are presented. On top of the EMI susceptibility comparison, we discuss PSRR and CMRR within large and small excitation signal with a new simulation setup. Even more, the back-gate connections of differential MOS pair in OTA input stage are investigated for EMI susceptibility impact as well.

An EMI susceptibility study of different integrated operational transconductance amplifiers

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

This paper presents a comparative EMI susceptibility study of different integrated operational transconductance amplifier (OTA) topologies. We analyzed...

An EMI susceptibility study of different integrated operational transconductance amplifiers

Article Category: PAPERS

Published Online: Mar 07, 2023

Page range: 13 - 22

Received: Oct 31, 2022

DOI: https://doi.org/10.2478/jee-2023-0002

Keywords
CMRR, common mode, dc voltage shift, EMC, EMI, folded cascode, HF immunity, low power, Miller, operational transconductance amplifier, OTA, open loop gain, PSRR

© 2023 David Krolák et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

An EMI susceptibility study of different integrated operational transconductance amplifiers

Article Category: PAPERS

Published Online: Mar 07, 2023

Page range: 13 - 22

Received: Oct 31, 2022

DOI: https://doi.org/10.2478/jee-2023-0002

KeywordsCMRR, common mode, dc voltage shift, EMC, EMI, folded cascode, HF immunity, low power, Miller, operational transconductance amplifier, OTA, open loop gain, PSRR

© 2023 David Krolák et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
CMRR, common mode, dc voltage shift, EMC, EMI, folded cascode, HF immunity, low power, Miller, operational transconductance amplifier, OTA, open loop gain, PSRR