Title :
The chemical current-conveyor: a new microchip biosensor
Author :
Pookaiyaudom, P. ; Toumazou, C. ; Lidgey, F.J.
Author_Institution :
Inst. of Biomed. Eng., Imperial Coll. of Sci., Technol. & Med., London
Abstract :
The concept of a chemical current-conveyor, or CCCII+, is presented. The device is primarily intended for pH read-out. At its core is an embedded CMOS current-conveyor, type-II, with two ISFETs in the input stage. The CCCII+ is extremely versatile and can easily be configured to give an output voltage, or current, directly proportional to pH value.
Keywords :
CMOS integrated circuits; biosensors; chemical sensors; microsensors; ISFET; chemical current-conveyor; embedded CMOS current-conveyor; microchip biosensor; pH read-out; Biosensors; CMOS technology; Chemical sensors; Chemical technology; Chemistry; Circuit topology; Electrodes; Operational amplifiers; Output feedback; Voltage;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4542130
