Other Parts Discussed in Thread: ADS1298
I am currently in the testing phase of using the ADS1298ECGFE-PDK with a 12-lead ECG simulator. During this phase, I am encountering several issues related to register configuration, noise, and other aspects that I am still learning about.
To begin, I successfully generated test signals which were functioning properly. However, upon connecting the ECG simulator and initiating data acquisition, I noticed that the data from the Limbs and Augmented leads were slightly better in quality compared to the Chest leads. There was some noise present in the acquired data. I attempted to mitigate this issue by applying a 50Hz Notch filter, but unfortunately, the noise persisted.
I have attached images of the waveform and the registers for reference.
Test Waveform
Test Waveform
Test signal registers value
Limbs and Augmented leads with simulator
Chest leads with simulator
ECG simulator registers value
1. Are the registers config correct?
2. Can you share the register configuration that works for a standard ECG simulator?
3. How can I remove the noise from the signal? I went through the guide SBAA188 - Improving Common-Mode Rejection Using the Right-Leg Drive Amplifier, is it still applicable while using an ECG simulator?
4. CONFIG2 register, In datasheet reset value as 40h. but after reading the registers in ADS1298/8R EVM Evaluation software the bit is zero and cannot be changed. What should be the value there or it can be ignored?
