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Mixing Integrator for Compact Electrochemical Impedance Spectroscopy

Ghoreishizadeh, Seyedeh; Ture, Kerim; (2022) Mixing Integrator for Compact Electrochemical Impedance Spectroscopy. In: 2022 29th IEEE International Conference on Electronics, Circuits and Systems (ICECS). IEEE: Glasgow, United Kingdom. Green open access

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Abstract

With the rapid development in the miniaturization and monolithic integration of electrochemical sensors with integrated microchips on semiconductor technology, the power and area efficiency of the instrumentation circuits have become an emerging interest. Electrochemical Impedance Spectroscopy (EIS) is an analytical technique widely used in electrochemistry to investigate the properties of materials and electrode reactions. A conventional frequency-response analyzer (FRA) is a powerful EIS measurement instrument composed of amplification, mixing, and low-pass filtering blocks. This paper presents a resetting timing scheme in an integrating amplifier with capacitive feedback for combining three functions into one circuit. The proposed method benefits from lower power consumption and reduced silicon area occupation, as well as eases the design complexity. The theoretical principle of timing selection is expressed in mathematical equations and verified by the circuit simulations.

Type: Proceedings paper
Title: Mixing Integrator for Compact Electrochemical Impedance Spectroscopy
Event: IEEE International Conference on Electronic Circuits and Systems (ICECS)
Location: Glasgow
Dates: 24 Oct 2022 - 26 Dec 2022
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/ICECS202256217.2022.9970795
Publisher version: https://doi.org/10.1109/ICECS202256217.2022.997079...
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Semiconductor device modeling, Electrodes, Semiconductor device measurement, Instruments, Silicon, Sensors, Timing
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10163172
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