Let´s say I have ADS1255 ADC http://www.ti.com/lit/ds/symlink/ads1255.pdf and I have its sample rate set to 50 samples per second. It looks like that at that sample rate the first notch of the digital fillter will be at 50Hz.
This tells me that there should be some pretty good rejection of 50Hz noise coming from the sensor that is connected to it.
However, there are three sensors multiplexed externally, and the multiplexer switches between those after each sample, therefore at 50Hz. Will the 50Hz rejection still work, or will it in this case ultimately have no real effect?
This tells me that there should be some pretty good rejection of 50Hz noise coming from the sensor that is connected to it.
However, there are three sensors multiplexed externally, and the multiplexer switches between those after each sample, therefore at 50Hz. Will the 50Hz rejection still work, or will it in this case ultimately have no real effect?