TY - GEN
T1 - Micropower sensors for neuroprosthetics
AU - Denison, Timothy
AU - Santa, Wesley
AU - Molnar, Greg
AU - Miesel, Keith
PY - 2007/12/1
Y1 - 2007/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=48349147236&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=48349147236&partnerID=8YFLogxK
U2 - 10.1109/ICSENS.2007.4388599
DO - 10.1109/ICSENS.2007.4388599
M3 - Conference contribution
AN - SCOPUS:48349147236
SN - 1424412617
SN - 9781424412617
T3 - Proceedings of IEEE Sensors
SP - 1105
EP - 1108
BT - The 6th IEEE Conference on SENSORS, IEEE SENSORS 2007
T2 - 6th IEEE Conference on SENSORS, IEEE SENSORS 2007
Y2 - 28 October 2007 through 31 October 2007
ER -