Micropower sensors for neuroprosthetics

Timothy Denison, Wesley Santa, Greg Molnar, Keith Miesel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations


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 languageEnglish (US)
Title of host publicationThe 6th IEEE Conference on SENSORS, IEEE SENSORS 2007
Number of pages4
StatePublished - 2007
Event6th IEEE Conference on SENSORS, IEEE SENSORS 2007 - Atlanta, GA, United States
Duration: Oct 28 2007Oct 31 2007

Publication series

NameProceedings of IEEE Sensors


Other6th IEEE Conference on SENSORS, IEEE SENSORS 2007
Country/TerritoryUnited States
CityAtlanta, GA


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