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

被引:2
作者
Xie, Chao [1 ]
Ma, Yuan [1 ]
Tang, Zijian [1 ]
Zhang, Milin [1 ]
机构
[1] Tsinghua Univ, Dept Elect Engn, Beijing, Peoples R China
来源
2021 THE 6TH INTERNATIONAL CONFERENCE ON INTEGRATED CIRCUITS AND MICROSYSTEMS (ICICM 2021) | 2021年
关键词
potentiostat; biosensing; current compensation; large dynamic range;
D O I
10.1109/ICICM54364.2021.9660272
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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 mm(2). The experimental results show a dynamic range of 68 dB with a power consumption of 105 mu W.
引用
收藏
页码:426 / 429
页数:4
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