Design of a voltammetry potentiostat with wide dynamic current range measurement

Chun Yueh Huang, Shi Yi Zeng, Bin-Da Liu

研究成果: Paper

1 引文 (Scopus)

摘要

In this paper, we design a voltammetry potentiostat chip with wide range current measurement for the signal processing of electrochemical biosensors. In this design, the current of biosensors will be detected and divided into four regions, and then be diminished in accordance with corresponding current scaling ratio. All the ranges of the biosensor's current will be diminished to a proper current range (≤ 2.5 μA) and then be converted into frequency-modulated pulses by a sigma-delta modulator in a fixed conversion time. The aim of this design is to deal with the large dynamic current range of signal processing for different biosensors in applications. The measured results of proposed potentiostat can be digitized by a microprocessor without using a high resolution ADC. The proposed potentiostat is fabricated by 0.35 μm CMOS technology, and the chip layout core area is 0.31 mm2. The function of the proposed potentiostat has been tested and measured in our laboratory, and the measurement results show that the dynamic range of signal processing, from 1nA to 2mA, is 126 dB. The power consumption under normal operation is 10 mW.

原文English
頁面335-338
頁數4
DOIs
出版狀態Published - 2013 一月 1
事件2013 International Conference on Communications, Circuits and Systems, ICCCAS 2013 - Chengdu, China
持續時間: 2013 十一月 152013 十一月 17

Other

Other2013 International Conference on Communications, Circuits and Systems, ICCCAS 2013
國家China
城市Chengdu
期間13-11-1513-11-17

指紋

Voltammetry
Biosensors
Signal processing
Electric current measurement
Modulators
Microprocessor chips
Electric power utilization

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture

引用此文

Huang, C. Y., Zeng, S. Y., & Liu, B-D. (2013). Design of a voltammetry potentiostat with wide dynamic current range measurement. 335-338. 論文發表於 2013 International Conference on Communications, Circuits and Systems, ICCCAS 2013, Chengdu, China. https://doi.org/10.1109/ICCCAS.2013.6765350
Huang, Chun Yueh ; Zeng, Shi Yi ; Liu, Bin-Da. / Design of a voltammetry potentiostat with wide dynamic current range measurement. 論文發表於 2013 International Conference on Communications, Circuits and Systems, ICCCAS 2013, Chengdu, China.4 p.
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Huang, CY, Zeng, SY & Liu, B-D 2013, 'Design of a voltammetry potentiostat with wide dynamic current range measurement' 論文發表於 2013 International Conference on Communications, Circuits and Systems, ICCCAS 2013, Chengdu, China, 13-11-15 - 13-11-17, 頁 335-338. https://doi.org/10.1109/ICCCAS.2013.6765350

Design of a voltammetry potentiostat with wide dynamic current range measurement. / Huang, Chun Yueh; Zeng, Shi Yi; Liu, Bin-Da.

2013. 335-338 論文發表於 2013 International Conference on Communications, Circuits and Systems, ICCCAS 2013, Chengdu, China.

研究成果: Paper

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N2 - In this paper, we design a voltammetry potentiostat chip with wide range current measurement for the signal processing of electrochemical biosensors. In this design, the current of biosensors will be detected and divided into four regions, and then be diminished in accordance with corresponding current scaling ratio. All the ranges of the biosensor's current will be diminished to a proper current range (≤ 2.5 μA) and then be converted into frequency-modulated pulses by a sigma-delta modulator in a fixed conversion time. The aim of this design is to deal with the large dynamic current range of signal processing for different biosensors in applications. The measured results of proposed potentiostat can be digitized by a microprocessor without using a high resolution ADC. The proposed potentiostat is fabricated by 0.35 μm CMOS technology, and the chip layout core area is 0.31 mm2. The function of the proposed potentiostat has been tested and measured in our laboratory, and the measurement results show that the dynamic range of signal processing, from 1nA to 2mA, is 126 dB. The power consumption under normal operation is 10 mW.

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Huang CY, Zeng SY, Liu B-D. Design of a voltammetry potentiostat with wide dynamic current range measurement. 2013. 論文發表於 2013 International Conference on Communications, Circuits and Systems, ICCCAS 2013, Chengdu, China. https://doi.org/10.1109/ICCCAS.2013.6765350