A Compact CMOS Electrochemical Sensor Readout Circuit for a Conductometric Sensor Array

被引：0

作者：

Lim, Cheolhwan ^{[1
]}

Dermal, Sujith S. ^{[1
]}

Jung, Sungyong ^{[1
]}

Myung, Nosang ^{[2
]}

Ryoo, Kwangki ^{[3
]}

机构：

[1] Univ Texas Arlington, Dept Elect Engn, Elect Engn, Arlington, TX 76019 USA

[2] Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USA

[3] Hanbat Natl Univ, Dept Informat & Commun Engn, Daejeon 305719, South Korea

来源：

JOURNAL OF LOW POWER ELECTRONICS | 2014年 / 10卷 / 04期

关键词：

Readout Circuit; TIA; Conductometric Sensor; Sensor Array;

D O I：

10.1166/jolpe.2014.1354

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 work aims to design and implement a compact electrochemical sensor readout circuit for a conductometric sensor array. The circuit reads out the outputs of the 4 by 4 conductometric sensor array and calculates the change in conductance during the interactions with the chemicals present in the environment. The condcutomeric sensing circuit which consists of a 16: 1 analog multiplexer and trans- impedance amplifier (TIA) is designed using 0.35 mu m CMOS process. The conductomeric circuit gives a linear response for the resistance variation range from 10 k Omega to 100 k Omega with 6.07 mW of power consumption.

引用

页码：635 / 639

页数：5

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