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Signal Amplitude referred to in "Small Signal bandwidth"

Dear Sir or Madam,

I have a question regarding the parameter specified as "small signal bandwidth" in the datasheets of multifunction I/O devices (e.g. PCIe 6363):
Which signal amplitudes are considered "small" in these terms? Is it a fixed value (e.g. for a single sine wave: 10% of fullscale range?).

Also, for large scale signals usually the slew rate parameter is required to estimate if they can be processed by the input stage. But I could not find a slew rate specification for the analog input of the PCIe 6363 in its datasheet (only for the analog output and the external reference. Is there anywhere else where I can find the slew rate of the analog inputs of multifunction IO devices?

Thanks already in advance!

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