Abstract
This paper proposes an analog front end (AFE) design and its analysis for its potential use in portable electro cardiogram (ECG) acquisition system and its faithful reproduction. As the ECG signals are low frequency and very low amplitude signals, they suffer from loss of information due to noise picked up from the EMI, motion of a body and capacitive loading of the probes. A design has been discussed in this work with simulations carried out by modelling the human body as load and electrical modelling of electrodes have been done. The simulations have been performed on TINA and results show a very promising characteristic of removal of baseline wander and noise and random noise introduced due to EMI.
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