Sistema de aquisição de dados de eletroencefalograma utilizando ADS1299 e módulo Orange Pi

Abstract

This work presents a data acquisition system composed by a 4-channel 24-bit digital analog converter, and an Orange Pi single board computer (SBC). Aiming to communicate the processing module with the acquisition system, a printed circuit board was built in order to acquire and process low amplitude biosynthesis, such as electroencephalogram signals. This work was developed into GMicro Research Group in the Federal University of Santa Maria and tested with known signals in the amplitude of 20 µVpp. It presented results with a signal-to-noise ratio (SNR) of 45 dB in acquisitions of 250 samples per second.