Hello everyone,
I try to develop EMG amplifier by using ADS1298. I made the PCB and communicated them by arduino UNO. I first try to acquire the signal from CH1. Everything went fine. I could configure and retrieve data from the ADS1298. But, there are too many spike appeared when I plotted the acquired signal in the Labview. This time I put a sine wave from the generator as you can see in Figure below.
The same thing also happened when I acquired the test signal from the ADS1298 its self (See Figure below).
Then, I try to put my EMG signal to the ADS1298. The positive, negative and ground electrodes were connected to the IN1P, IN1N and RLDOUT, respectively. The EMG signal could be seen as you can see in the red circle in Figure below.
The EMG signal is very small when compared with those spikes. What happen with my ADS1298? I have know idea how to fix it.
Could you please suggest me how to solve this problem? Or any advise for better EMG amplifier?