DocumentCode :
1505713
Title :
Wireless Neural/EMG Telemetry Systems for Small Freely Moving Animals
Author :
Harrison, R.R. ; Fotowat, H. ; Chan, R. ; Kier, R.J. ; Olberg, R. ; Leonardo, A. ; Gabbiani, F.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Utah, Salt Lake City, UT, USA
Volume :
5
Issue :
2
fYear :
2011
fDate :
4/1/2011 12:00:00 AM
Firstpage :
103
Lastpage :
111
Abstract :
We have developed miniature telemetry systems that capture neural, EMG, and acceleration signals from a freely moving insect or other small animal and transmit the data wirelessly to a remote digital receiver. The systems are based on custom low-power integrated circuits (ICs) that amplify, filter, and digitize four biopotential signals using low-noise circuits. One of the chips also digitizes three acceleration signals from an off-chip microelectromechanical-system accelerometer. All information is transmitted over a wireless ~ 900-MHz telemetry link. The first unit, using a custom chip fabricated in a 0.6- μm BiCMOS process, weighs 0.79 g and runs for two hours on two small batteries. We have used this system to monitor neural and EMG signals in jumping and flying locusts as well as transdermal potentials in weakly swimming electric fish. The second unit, using a custom chip fabricated in a 0.35-μ m complementary metal-oxide semiconductor CMOS process, weighs 0.17 g and runs for five hours on a single 1.5-V battery. This system has been used to monitor neural potentials in untethered perching dragonflies.
Keywords :
electromyography; low-power electronics; radio receivers; telemetry; BiCMOS process; EMG telemetry systems; biopotential signals; custom chip fabricated; frequency 900 MHz; low-noise circuits; low-power integrated circuits; miniature telemetry systems; off-chip microelectromechanical-system accelerometer; remote digital receiver; small freely moving animals; swimming electric fish; wireless neural; Batteries; Electrodes; Electromyography; Muscles; Neurons; Telemetry; Wireless communication; EMG amplifier; neural amplifier; neuroscience; wireless telemetry;
fLanguage :
English
Journal_Title :
Biomedical Circuits and Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
1932-4545
Type :
jour
DOI :
10.1109/TBCAS.2011.2131140
Filename :
5756673
Link To Document :
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