A low-noise preamplifier for nerve cuff electrodes.
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 komega. The bandwidth is 230 Hz-8.25 kHz (Rs=2 komega), and the common-mode-rejection-ratio is 91.2 dB at 1 kHz.
Sahin
Mesut
M
Biomedical Engineering Department, Louisiana Technical University, Ruston 71272, USA. sahin@coes.latech.edu
D000200:Action Potentials / Q000502:physiology*; D000669:Amplifiers, Electronic; D017076:Computer-Aided Design; D004567:Electrodes, Implanted; D004867:Equipment Design; D019544:Equipment Failure Analysis; D010525:Peripheral Nerves / Q000502:physiology*; D012680:Sensitivity and Specificity