NDLI: A CMOS switched-capacitor interface circuit for an integrated accelerometer

Content Provider	IEEE Xplore Digital Library
Author	Kulah, H. Yazdi, N. Najafi, K.
Copyright Year	2000
Description	Author affiliation: Center for Integrated Microsystems, Michigan Univ., Ann Arbor, MI, USA (Kulah, H.)
Abstract	Presents a CMOS interface electronics for monolithic micromachined capacitive accelerometer systems. The interface electronics is a fully differential switched-capacitor charge integrator with its internal clock generator and sensor feedback circuit for closed-loop operation. The circuit is designed for open-loop and closed-loop operations, and provides both digital and differential analog outputs. One of the main advantages of this chip is that it can be monolithically integrated with the sensor, resulting in a considerably increased sensor module performance by decreasing the overall system area, minimizing the interface parasitics, and simplifying the packaging. The interface electronics operates at 200kHz sampling clock and provides an adjustable sensitivity between 0.3 and 1.2V/pF with better than 100aF expected resolution resulting in a 93dB dynamic range for 1Hz bandwidth. The total chip dissipates less than 7.2mW power from a single 5V supply, and occupies an area of 3.4/spl times/3.6 mm/sup 2/ in 3/spl mu/m one-metal two-poly p-well. CMOS process of University of Michigan.
Starting Page	244
Ending Page	247
File Size	515259
Page Count	4
File Format	PDF
ISBN	0780364759
DOI	10.1109/MWSCAS.2000.951630
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-08-08
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Switching circuits Clocks Sensor systems Accelerometers Feedback circuits Electronics packaging Sampling methods Dynamic range Bandwidth CMOS process
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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