Noise Behaviour of EMI Improved Folded Cascode Amplifier Input Stages Including Layout Parasitics

Nikolaus Czepl; Dominik Zupan

doi:10.1109/Austrochip53290.2021.9576855

Noise Behaviour of EMI Improved Folded Cascode Amplifier Input Stages Including Layout Parasitics

Nikolaus Czepl, Dominik Zupan

Institute of Electronics (4390)

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Abstract

In this paper we investigate the noise behaviour of electromagnetic interference (EMI) improved integrated folded cascode amplifier input stages. In this context we compare seven EMI improved differential input pair structures, using concepts of filtering, linearisation and compensation in terms of their noise behaviour. We pay special attention to the differences in the behaviour of the structures at the design stage and the layout stage, where we also considered layout-specific parasitics that can affect circuit and noise performance. We analyse the structures in terms of input referred noise, noise contribution of different devices, contributions of layout parasitics to noise, differential mode gain, gain-bandwidth product (GBWP) and power.

Original language	English
Title of host publication	2021 29th Austrochip Workshop on Microelectronics, Austrochip 2021
Pages	13-16
Number of pages	4
ISBN (Electronic)	978-1-6654-3661-8
DOIs	https://doi.org/10.1109/Austrochip53290.2021.9576855
Publication status	Published - 14 Oct 2021
Event	29th Austrochip Workshop on Microelectronics: Austrochip 2021 - Johannes Kepler Universität Linz, Linz, Austria Duration: 14 Oct 2021 → …

Publication series

Name	2021 29th Austrochip Workshop on Microelectronics, Austrochip 2021

Conference

Conference	29th Austrochip Workshop on Microelectronics
Country/Territory	Austria
City	Linz
Period	14/10/21 → …

Keywords

electromagnetic interference
operational amplifier
EMI improved, noise
folded cascode
EMI induced offset
differential input pair
noise
EMI improved

ASJC Scopus subject areas

Electrical and Electronic Engineering
Hardware and Architecture

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10.1109/Austrochip53290.2021.9576855

Cite this

Noise Behaviour of EMI Improved Folded Cascode Amplifier Input Stages Including Layout Parasitics. / Czepl, Nikolaus ; Zupan, Dominik.
2021 29th Austrochip Workshop on Microelectronics, Austrochip 2021. 2021. p. 13-16 (2021 29th Austrochip Workshop on Microelectronics, Austrochip 2021).

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Czepl, N & Zupan, D 2021, Noise Behaviour of EMI Improved Folded Cascode Amplifier Input Stages Including Layout Parasitics. in 2021 29th Austrochip Workshop on Microelectronics, Austrochip 2021. 2021 29th Austrochip Workshop on Microelectronics, Austrochip 2021, pp. 13-16, 29th Austrochip Workshop on Microelectronics, Linz, Austria, 14/10/21. https://doi.org/10.1109/Austrochip53290.2021.9576855

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abstract = "In this paper we investigate the noise behaviour of electromagnetic interference (EMI) improved integrated folded cascode amplifier input stages. In this context we compare seven EMI improved differential input pair structures, using concepts of filtering, linearisation and compensation in terms of their noise behaviour. We pay special attention to the differences in the behaviour of the structures at the design stage and the layout stage, where we also considered layout-specific parasitics that can affect circuit and noise performance. We analyse the structures in terms of input referred noise, noise contribution of different devices, contributions of layout parasitics to noise, differential mode gain, gain-bandwidth product (GBWP) and power.",

keywords = "electromagnetic interference, operational amplifier, EMI improved, noise, folded cascode, EMI induced offset, differential input pair, noise, EMI improved",

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doi = "10.1109/Austrochip53290.2021.9576855",

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Noise Behaviour of EMI Improved Folded Cascode Amplifier Input Stages Including Layout Parasitics

Abstract

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Keywords

ASJC Scopus subject areas

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