Higher Order Sigma-Delta Modulator Interfaces for MEMS Capacitive Sensors

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Using higher order sigma-delta modulator topologies, similar to the ones used for electronic A/D converters, and applying them to micromachined capacitive sensors is a promising approach to increase the performance of these sesnors. The paper presents simulation and measurement results of different architectures applied to a bulk-micromachined accelerometer.

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Journal: TechConnect Briefs
Volume: 3, Technical Proceedings of the 2005 NSTI Nanotechnology Conference and Trade Show, Volume 3
Published: May 8, 2005
Pages: 459 - 462
Industry sector: Sensors, MEMS, Electronics
Topics: MEMS & NEMS Devices, Modeling & Applications
ISBN: 0-9767985-2-2