The Front-End Design of Portable EEG Acquisition System Based On the ADS1299

This paper introduces a new type of brain signal acquisition device, users simply select the appropriate setting and electrode, the device can be real-time acquisition of EEG data, and the data can be displayed and stored. It has high precision, small size and low power consumption. Eliminating a large number of peripheral circuits, the device is mainly composed of STM32F103VET6 made by the company of ST and TI's ADS1299 analog front-end IC. The acquisition device communicate with the host computer for data transfer with a wireless transmission protocol, the source code of the application have been compiled with VC to receive EEG data and accurately shown in the display software. The study provides the basis for BCI to the practical conversion.