Title :
A low-noise preamplifier for nerve cuff electrodes
Author_Institution :
Biomed. Eng. Dept., Louisiana Tech. Univ., Ruston, LA, USA
Abstract :
A single-stage, low-noise preamplifier is designed using the concept of noise matching for recordings of neural signal with cuff electrodes. The signal-to-noise ratio is approximately 1.6 times higher than that of a low-noise integrated amplifier (AMP-01) for a cuff impedance of 1.5 kΩ. The bandwidth is 230 Hz-8.25 kHz (Rs=2 kΩ), and the common-mode-rejection-ratio is 91.2 dB at 1 kHz.
Keywords :
biomedical electrodes; neurophysiology; preamplifiers; 1.5 kohm; 2 kohm; 230 Hz to 8.25 kHz; nerve cuff electrodes; neural signal; noise matching; single-stage low-noise preamplifier; Electrodes; Electromyography; Impedance; Noise generators; Noise reduction; Preamplifiers; Signal design; Signal generators; Signal to noise ratio; Thermal resistance; Nerve electrodes; neural recording; noise reduction; Action Potentials; Amplifiers; Computer-Aided Design; Electrodes, Implanted; Equipment Design; Equipment Failure Analysis; Peripheral Nerves; Sensitivity and Specificity;
Journal_Title :
Neural Systems and Rehabilitation Engineering, IEEE Transactions on
DOI :
10.1109/TNSRE.2005.856073
