Readout Circuit Design for an EISCAP Biosensor

被引：2
|
作者：
Vemulachedu, Hareesh [1 ]
Pavan, Shanthi [1 ]
Bhattacharya, Enakshi [1 ]
机构：
[1] Indian Inst Technol Madras, Madras, Tamil Nadu, India
来源：
2008 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE - INTELLIGENT BIOMEDICAL SYSTEMS (BIOCAS) | 2008年
关键词：
D O I：
10.1109/BIOCAS.2008.4696877
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
We present the design of readout electronics for an Electrolyte Insulator Semiconductor capacitor (EISCAP) sensor. The sensor detects the presence of bioanalytes by sensing the change in the pH of the electrolyte. Our technique uses an EISCAP relaxation oscillator embedded in a successive approximation analog-to-digital conversion algorithm to give a digital readout of the pH of the test solution. A microcontroller based pH readout instrument, incorporating calibration to account for sensor variations, is described. Experimental results that demonstrate the efficacy of our techniques are given.
引用
收藏
页码：73 / 76
页数：4
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