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  4. Analysis of Integrator-Differentiator Transimpedance Amplifiers: Speed and Gain Tradeoff Introduced by Parasitic Capacitances
 
research article

Analysis of Integrator-Differentiator Transimpedance Amplifiers: Speed and Gain Tradeoff Introduced by Parasitic Capacitances

Saberi, Mehdi  
•
Cao, Chan
•
Peraro, Matteo Dal  
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June 10, 2025
IEEE Transactions on Instrumentation and Measurement

In this paper, the frequency behavior and stability of current recording systems employing continuous-time integrator-differentiator transimpedance amplifiers (TIAs) are analyzed. The proposed comprehensive analysis provides designers helpful design rules and the ability to better predict the behavior of each individual blocks as well as the overall circuit. Moreover, it demonstrates that the overall TIA circuit suffers from stability issue introduced by parasitic capacitances which the designers may underestimate its importance. This leads to a tradeoff between the speed and gain of the TIA circuit. In addition, it is shown that using a differential-output structure improves the stability issues caused by the parasitic capacitances. The simulation and measurement results of a prototype circuit implemented in a 180-nm CMOS technology verify the effectiveness of the proposed analysis.

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Type
research article
DOI
10.1109/tim.2025.3573761
Author(s)
Saberi, Mehdi  

École Polytechnique Fédérale de Lausanne

Cao, Chan
Peraro, Matteo Dal  

École Polytechnique Fédérale de Lausanne

Schmid, Alexandre  

École Polytechnique Fédérale de Lausanne

Date Issued

2025-06-10

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Published in
IEEE Transactions on Instrumentation and Measurement
Subjects

Transimpedance amplifier

•

TIA

•

integrator

•

differentiator

•

stability

•

speed-gain tradeoff

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

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Available on Infoscience
June 11, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/251252
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