Chemical log-domain filter

被引：2
|
作者：
Georgiou, P. [1 ]
Toumazou, C. [1 ]
机构：
[1] Univ London Imperial Coll Sci Technol & Med, Inst Biomed Engn, London SW7 2AZ, England
来源：
ELECTRONICS LETTERS | 2009年 / 45卷 / 08期
关键词：
WEAK INVERSION ISFETS; CMOS;
D O I：
10.1049/el.2009.0152
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：
Presented is a chemical log-domain filter in which an ion sensitive field effect transistor (ISFET) is used to expand a naturally log-compressed chemical signal to derive a chemically-dependent lossy-integrator, whose gain and bandwidth are functions of ion concentration. This is used to integrate small chemical signals or have a filter adaptable to changes in chemical concentration.
引用
收藏
页码：391 / U73
页数：2
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