Title :
An interface circuit for piezoresistive pressure sensors
Author :
Vlassis, S. ; Siskos, S.
Author_Institution :
Dept. of Phys., Aristotle Univ. of Thessaloniki, Greece
Abstract :
An interfacing circuit for piezoresistive pressure sensors based on CMOS second generation current conveyors is presented. Main advantages of the proposed circuit include the use of only two piezoresistors, low offset, high CMRR using CCII based instrumentation amplifier, temperature compensation and high linearity of the output frequency. Simulation as well as experimental results are included to demonstrate its performance
Keywords :
CMOS analogue integrated circuits; bridge circuits; compensation; current conveyors; current-mode circuits; instrumentation amplifiers; pressure sensors; CMOS second generation current conveyors; CMRR; instrumentation amplifier; offset; output frequency linearity; piezoresistive pressure sensors; temperature compensation; Circuits; Equations; Impedance; Operational amplifiers; Output feedback; Piezoresistance; Shape; Temperature sensors; Transconductance; Voltage;
Conference_Titel :
Electrotechnical Conference, 1998. MELECON 98., 9th Mediterranean
Conference_Location :
Tel-Aviv
Print_ISBN :
0-7803-3879-0
DOI :
10.1109/MELCON.1998.692470
