DocumentCode
3363895
Title
Continuous Time Interface for ±1.5 g Closed-Loop Accelerometer
Author
Aaltonen, Lasse ; Rahikkala, Pasi ; Saukoski, Mikko ; Halonen, Kari
Author_Institution
Helsinki Univ. of Technol., Helsinki
fYear
2007
fDate
May 30 2007-June 1 2007
Firstpage
1
Lastpage
4
Abstract
A continuous time analog interface for a capacitive accelerometer element is implemented. The integrated part of the interface includes an oscillator and readout circuitry excluding a controller and references. For the realized sensor, the minimum equivalent acceleration noise density of 400 ng/radicHz is measured. A full scale acceleration of plusmn1.5 g and a signal bandwidth of 300 Hz is achieved. The closed-loop sensor is capable of surviving a shock condition.
Keywords
accelerometers; capacitive sensors; closed loop systems; continuous time systems; bandwidth 300 Hz; capacitive accelerometer; closed-loop sensor; continuous time analog interface; Acceleration; Accelerometers; Bandwidth; Capacitive sensors; Force feedback; Frequency; Low pass filters; Oscillators; Resonance; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Integrated Circuit Design and Technology, 2007. ICICDT '07. IEEE International Conference on
Conference_Location
Austin, TX
Print_ISBN
1-4244-0757-5
Electronic_ISBN
1-4244-0757-5
Type
conf
DOI
10.1109/ICICDT.2007.4299571
Filename
4299571
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