NDLI: Mixed Analog-digital Highly-sensitive Sensor Interface Circuit For Low-cost Microsensors

Content Provider	IEEE Xplore Digital Library
Author	Burstein, A. Kaiser, W.J.
Copyright Year	1995
Description	Author affiliation: University of California, Los Angeles (Burstein, A.)
Abstract	Rapidly emerging applications for microaccelerometer and microgyroscope position sensors require a major advance in stability and resolution. A highly sensitive, stable, and robust sensor interface circuit that can be applied to inertial navigation sensors is presented in this paper. The circuit can be applied to any fully-differential capacitive sensor or to a differential piezoresistive one. The high sensitivity is achieved by a double-sampling technique, compensating switch, and feedback method with a high loop gain. The charge injection by the MOS switches was reduced below the thermal noise level of the opamp. Resolution and stability levels of 10/sup -8/ with a supply variation of 10% are achieved.
Starting Page	162
Ending Page	165
File Size	589925
Page Count	4
File Format	PDF
ISBN	9163034735
DOI	10.1109/SENSOR.1995.717122
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-06-25
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Analog-digital conversion Microsensors Bridge circuits Capacitors Stability Piezoresistance Temperature sensors Switches Capacitance measurement Transducers
Content Type	Text
Resource Type	Article

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Mixed Analog-digital Highly-sensitive Sensor Interface Circuit For Low-cost Microsensors