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I have one question in connection the PCI-6704 to a current driver (the electric diagram is attached, this current driver is simply a voltage follower): I connect the PCI -6704 Pin 34 to V pin in current driver, then How should I connect the pin 68? should I connect it to the ground line in current driver, or I can just leave it alone.
I believe you should be ok by connecting pin 68 of the DAQ board to GND of your external circuitry, since you have a unity buffer in between the DAQ board and the circuitry. Hope this helps. Filipe