Title :
A New CMOS Integrable Oscillating Circuit for High-Value Wide-Range Resistive Sensors
Author :
Depari, A. ; Flammini, A. ; Marioli, D. ; Taroni, A. ; De Marcellis, A. ; Ferri, G. ; Stornelli, V.
Author_Institution :
Univ. of Brescia, Brescia
Abstract :
A new oscillating circuit is proposed to estimate resistance and parallel parasitic capacitance of chemical sensors. The circuit is able to reveal resistance in a wide range, from tens of k Omega to over than 100 G Omega. Experimental results of a discrete board prototype confirm the very good performance of post-layout simulation tests concerning the CMOS integrated implementation.
Keywords :
CMOS analogue integrated circuits; chemical sensors; gas sensors; oscillators; CMOS integrable oscillating circuit; chemical sensors; gas sensors; high-value wide-range resistive sensors; parallel parasitic capacitance; CMOS technology; Capacitive sensors; Chemical sensors; Circuit testing; Electric resistance; Electronic circuits; Gas detectors; Parasitic capacitance; Sensor arrays; Thermal sensors; CMOS sensor interfaces; gas sensors; resistance estimation; wide-range sensor variation;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2007. IMTC 2007. IEEE
Conference_Location :
Warsaw
Print_ISBN :
1-4244-0588-2
DOI :
10.1109/IMTC.2007.379117
