I/O Type >> Analog Input >> Timing >> Maximum Single Channel Rate

NI-DAQmx C Properties

I/O Type >> Analog Input >> Timing >> Maximum Single Channel Rate

Data Type: float64
Description: Indicates the maximum rate for an analog input task if the task contains only a single channel from this device.
Restrictions: Not Settable

You can get this property using:
  DAQmxGetDevAIMaxSingleChanRate