用于电化学生物传感的68 dB输入动态范围恒电位器的设计

2021 6th International Conference on Integrated Circuits and Microsystems (ICICM) Pub Date : 2021-10-22 DOI:10.1109/ICICM54364.2021.9660272

Chao Xie, Yuan Ma, Zijian Tang, Milin Zhang

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引用次数: 2

摘要

提出了一种用于电化学生物传感的高输入动态范围的低功率恒电位器的设计。为了扩大检测范围，提出了电流补偿电路。采用斩波稳定电位器抑制低频噪声，实现高精度。所提出的设计是在0.18-$\mu$m CMOS工艺中制造的，占据0.43 mm2的硅面积。实验结果表明，动态范围为68 dB，功耗为105 $\mu$W。

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Design of a 68 dB Input Dynamic Range Potentiostat for Electrochemical Biosensing

This paper proposed design of a low power potentiostat for electrochemical biosensing with high input dynamic range. A current compensation circuit is proposed to extend the detection range. Chopper stabilization potentiostat is used to suppress the low-frequency noise, realizing a high accuracy. The proposed design was fabricated in 0.18-$\mu$m CMOS process occupying a silicon area of 0.43 mm2. The experimental results show a dynamic range of 68 dB with a power consumption of 105 $\mu$W.

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2021 6th International Conference on Integrated Circuits and Microsystems (ICICM)

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