A real time ECG preprocessing system based on ADS1298

The aim of this paper is to discuss the main characteristics of a real time ECG pre-processing multichannel system designed by the authors of the paper. It is based on the multichannel high-resolution ADS1298 integrated circuit and the MSP430F5529microcontroller, both from Texas Instruments. The developed acquisition system complies with the international standard IEC60601-2-25:2011 {ed2.0} and provides improvements in parametric characteristics of the signal with respect to previous solutions. The recovery times decreased to 1.33 seconds and the common mode rejection ratio (CMRR) has been increased to 94.3 dB in lead I and 93.71dB in lead II as compared to the corresponding values 91.12 and 90.86 obtained by the authors in previous solutions. Noise level decreased from 11μV to 9μV. The present solution is more compact and reliable so it can be used in different equipments for real time ECG pre-processing.