Micropower sensors for neuroprosthetics

Timothy Denison; Wesley Santa; Greg Molnar; Keith Miesel

doi:10.1109/ICSENS.2007.4388599

Micropower sensors for neuroprosthetics

Timothy Denison, Wesley Santa, Greg Molnar, Keith Miesel

Neurology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Scopus citations

Abstract

We describe two prototype micropower sensors that potentially help enable neuroprosthetics for the treatment of chronic disease. The first sensor is an EEG instrumentation amplifier for the measurement of neurological field potentials in physiologically relevant bandwidths. The second sensor is a three-axis accelerometer for measuring posture, activity, and tremor. Both sensor interfaces use dynamic offset cancellation techniques-chopper stabilization for the EEG amplifier, correlated-double-sampling for the accelerometer-to reject low frequency excess noise that might otherwise corrupt the key physiological signals. To be compatible with chronic implantation, each sensor interface must operate with less than 2μW of power from a single battery. Using accepted metrics, these sensors represent the state-of-the-art for noise efficiency.

Original language	English (US)
Title of host publication	The 6th IEEE Conference on SENSORS, IEEE SENSORS 2007
Pages	1105-1108
Number of pages	4
DOIs	https://doi.org/10.1109/ICSENS.2007.4388599
State	Published - Dec 1 2007
Event	6th IEEE Conference on SENSORS, IEEE SENSORS 2007 - Atlanta, GA, United States Duration: Oct 28 2007 → Oct 31 2007

Publication series

Name	Proceedings of IEEE Sensors

Other

Other	6th IEEE Conference on SENSORS, IEEE SENSORS 2007
Country	United States
City	Atlanta, GA
Period	10/28/07 → 10/31/07

Access

10.1109/ICSENS.2007.4388599

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