Work

Non-Linear Modeling and Analysis of Amplifier-Less Potentiostat Architectures

Year: 2025

Type: conference-paper

Abstract: In this article, a previously published amplifier-less potentiostat architecture is further examined. Starting with a linearized model, the impact of the most important parameters is studied taking in account the electrodes-solution electrochemical interface. A detailed model is obtained and thoroughly verified, and recommended operating conditions are given for certain limit load conditions. Then, a more complete non-linear model is developed to take in account the measurement uncertainty introduced by the circuit non-linear components. This non-linear model is compared to a time domain description of the circuit and it is verified that it can predict the non-linear behavior with a precision better than 20%. This result enables the circuit designers to compensate for these effects and ultimately reduce the overall measurement uncertainty.

Source: Conference proceedings

DOI: 10.1109/mwscas53549.2025.11244449

Authors: Andrea Sannino, David-Peter Wiens, Maurits Ortmanns, José I. Artigas, Aránzazu Otín

Institutions: Universidad de Zaragoza, Instituto de Investigación en Ingeniería de Aragón, Universität Ulm

Language: English

Topic: Electrochemical Analysis and Applications

Subfield: Electrochemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: green

Funder: Ministerio de Ciencia e Innovación

Award: G4082267166