@inproceedings{0f06051a36ea4b3798125ab7efb87787,
title = "A power-efficient, bi-directional readout interface circuit for cyclic-voltammetry electrochemical sensors",
abstract = "This paper presents an electrochemical sensing front-end circuit with a cyclic voltammetry potentiostat. To accommodate a large and bidirectional current sensing range for the current-mirror based potentiostat, a constant offset current is added. With the technique of chopper-stabilization, the flicker noise of the readout circuit is successfully reduced. A charge-based oscillator is also proposed in this paper to convert the current into a frequency for further data readout. The proposed readout IC was fabricated in a 0.18μm, 1.2V CMOS process and the current range is -2μA 12.2μA, the R2 linearity of 0.992, with a minimum detectable current of 3.1nA. The dynamic current range is 73.2dB whereas the chip consumes 40.5μW at a maximum sensing current of 12.2μA.",
keywords = "CMOS, Chopper stabilization, Cyclic Voltammetry, Large dynamic range, Potentiostat",
author = "Chen, {Yi Chia} and Lu, {Shao Yung} and Tsai, {Jui Hsiang} and Liao, {Yu Te}",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2019 ; Conference date: 22-04-2019 Through 25-04-2019",
year = "2019",
month = apr,
doi = "10.1109/VLSI-DAT.2019.8741529",
language = "English",
series = "2019 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2019",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2019 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2019",
address = "美國",
}