Title :
A low power interface circuit for resistive sensors with digital offset compensation
Author :
Boujamaa, El Mehdi ; Alandry, Boris ; Hacine, Souha ; Latorre, Laurent ; Mailly, Frederick ; Nouet, Pascal
Author_Institution :
LIRMM, Univ. of Montpellier, Montpellier, France
fDate :
May 30 2010-June 2 2010
Abstract :
This paper presents an innovative conditioning and read-out interface for resistive MEMS sensors. The proposed structure includes a digital offset compensation for robustness to process and temperature variations. Simulation results demonstrate an impressive resolution to power consumption ratio and a good immunity to environmental parameters. Experimental results finally demonstrate the efficiency of this promising read-out architecture.
Keywords :
digital readout; magnetic sensors; micromechanical devices; piezoresistive devices; power consumption; digital offset compensation; magnetic field sensor; power consumption; power interface circuit; readout interface; resistive MEMS sensor; Bridge circuits; Electric resistance; Energy consumption; Instruction sets; Micromechanical devices; Robustness; Signal resolution; Signal to noise ratio; Temperature sensors; Voltage;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5537970
