Title :
A low-voltage low-power current-mode gas sensor integrated interface
Author :
Cantalini, Carlo ; Ferri, Giuseppe ; Guerrini, Nicola C. ; Santucci, Sandro
Author_Institution :
Dipt. Ingegnoia, Chimica e dei Materiali, L´´Aquila Univ., Italy
Abstract :
In this work, we present a low-voltage (±0.75 V) low-power (0.7 mW) current mode-based integrated interface for resistive gas sensors. The proposed interface, which includes a grounded resistive sensor, shows the capability of compensation of non-idealities of passive and active components, in particular the voltage offset. The sensitivity value has been set to about 16 mV/KΩ, while theoretical resolution is about 135 Ω, to which corresponds a gas resolution lower than 1.5 ppm.
Keywords :
current-mode circuits; gas sensors; low-power electronics; 0.7 mW; 0.75 V; active components; current mode based integrated interface; grounded resistive sensor; low power current mode gas sensor; low voltage current mode gas sensor; passive components; resistive gas sensors; voltage offset; Chemical sensors; Electrical resistance measurement; Energy consumption; Gas detectors; Impedance; Inorganic materials; Surface resistance; Temperature distribution; Temperature sensors; Voltage;
Conference_Titel :
Microelectronics, 2004. ICM 2004 Proceedings. The 16th International Conference on
Print_ISBN :
0-7803-8656-6
DOI :
10.1109/ICM.2004.1434243
