Title :
Ultra-low power precision ISFET readout using global current feedback
Author :
Premanode, B. ; Chan, W.P. ; Toumazou, C.
Author_Institution :
Inst. of Biomed. Eng., Imperial Coll. London
Abstract :
A solid-state chemical sensor ion sensitive field effect transistor (ISFET) that operates in weak inversion and interfaces with negative current feedback to maximise linearity is proposed. The power consumption of this circuit when operating in the weak inversion region is in the nanowatt range, which makes it suitable for biomedical applications
Keywords :
chemical sensors; ion sensitive field effect transistors; low-power electronics; readout electronics; biomedical applications; global current feedback; ion sensitive field effect transistor; negative current feedback; solid-state chemical sensor; weak inversion region;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20061690
