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I'm using NI 9234 to acquire a vibration signal. I read the datasheet of this module and on page 5, it says that "The NI 9234 uses a combination of analog and digital filtering to provide an accurate representation of in-band signals and reject out-of-band signals."
However I didn't find a mention anywhere of the details of the filter (for example the type, order, etc.). Does anyone have an idea about this?
I couldn't find more official information about the filtering specifics. I guess the analog filter is a simple low pass to limit the higher frequeency components and the digital filter should be a multi-stage FIR as common in Delta-Sigma-ADCs.