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A complete front-end system for resistive gas sensor array is presented. The system is composed by a substrate temperature control circuit and by a read-out circuit. The temperature control allows maintaining a 100 degrees C temperature gradient selected in the temperature range [150 degrees C-350 degrees C] on the array of sensor. The gas sensor read-out circuit, which acts like a resistance-to-period converter, is suitable to be interfaced to a microcontroller in order to achieve a resolution error lower than 0.5% for a resistance ranging in [300k Omega-300M Omega]. The full device, including 8 read-out channels and 2 temperature control systems, is designed in a standard 0.35 mu m CMOS technology. The die area is 1.8mm(2) with a total power consumption of 30mW from a single 3.3V supply voltage

Malfatti, M., Perenzoni, M., Viarani, N., Simoni, A., Lorenzelli, L., Baschirotto, A. (2005). A complete front-end system read-out and temperature control for resistive gas sensor array. In Proceedings of the 2005 European Conference on Circuit Theory and Design, Vol 3 (pp.31-34). 345 E 47TH ST, NEW YORK, NY 10017 USA : IEEE [10.1109/ECCTD.2005.1523053].

A complete front-end system read-out and temperature control for resistive gas sensor array

BASCHIROTTO, ANDREA
2005

Abstract

A complete front-end system for resistive gas sensor array is presented. The system is composed by a substrate temperature control circuit and by a read-out circuit. The temperature control allows maintaining a 100 degrees C temperature gradient selected in the temperature range [150 degrees C-350 degrees C] on the array of sensor. The gas sensor read-out circuit, which acts like a resistance-to-period converter, is suitable to be interfaced to a microcontroller in order to achieve a resolution error lower than 0.5% for a resistance ranging in [300k Omega-300M Omega]. The full device, including 8 read-out channels and 2 temperature control systems, is designed in a standard 0.35 mu m CMOS technology. The die area is 1.8mm(2) with a total power consumption of 30mW from a single 3.3V supply voltage
paper
Front-end; Gas sensor; Resistance measurement; Temperature control;
0.3 to 300 Mohm; 0.35 micron; 100 C; 150 to 350 C; 3.3 V; 30 mW; CMOS technology; front end system read-out; microcontroller; read out circuit; resistance measurement; resistance-to-period converter; resistive gas sensor array; substrate temperature control circuit; CMOS integrated circuits; gas sensors; readout electronics; temperature control;
English
European Conference on Circuit Theory and Design AUG 29-SEP 02
2005
Proceedings of the 2005 European Conference on Circuit Theory and Design, Vol 3
9780780390669
2005
3
31
34
1523053
none
Malfatti, M., Perenzoni, M., Viarani, N., Simoni, A., Lorenzelli, L., Baschirotto, A. (2005). A complete front-end system read-out and temperature control for resistive gas sensor array. In Proceedings of the 2005 European Conference on Circuit Theory and Design, Vol 3 (pp.31-34). 345 E 47TH ST, NEW YORK, NY 10017 USA : IEEE [10.1109/ECCTD.2005.1523053].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/36709
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