Hi mdillon,
If you go to
ni.com and enter '6733' in the Search field then you will be linked to the
product page for the PXI-6733.
Once there you can look at the link for the
User Manuals for this device.
You will want to take a look in the
Analog Output Series Help (User Manual and Specifications). Once you open this file simply search for '6733 impedance' and you will see that the
Input Impedance for a powered-on PXI-6733 is 0.1 Ohms.
You can also find the specs by using the Contents Tree of the Help file and navigate to
Analog Output Series Help > Device-Specific Information > NI 6731/6733 > SpecificationsI hope this helps you,
