Title :
An adaptive front end for olfaction
Author :
Apsel, Alyssa ; Stanford, Theron ; Hasler, Paul
Author_Institution :
Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
We have developed a high-resolution front-end chemical sensing system with time adaptation. This circuit uses analog subthreshold floating-gate technology to produce normalized percent change outputs over a wide range of sensor resistances. We fabricated these circuits in a standard CMOS 2 μm process. We present the analytical and experimental results of this system
Keywords :
CMOS analogue integrated circuits; analogue processing circuits; chemical sensors; chemioception; 2 micron; CMOS; adaptive front end; analog subthreshold floating-gate technology; chemical sensing system; normalized percent change outputs; olfaction; sensor resistances; time adaptation; Animals; Biosensors; CMOS technology; Chemical and biological sensors; Chemical sensors; Chemical technology; Circuits; Immune system; Polymers; Sensor systems;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.703917
