Hello @Jonathan MA Tech.
Please confirm whether or not your customer has a PCI-DAS6036 board.
https://www.mccdaq.com/pdfs/manuals/PCI-DAS6034-35-36.pdf
The analog input channels on a PCI-DAS6036 board have a 100 GOhm input impedance, while the USB-3105 has a low analog output impedance, < 1 Ohm, as previous posted.
How much noise are you measuring on the analog input channels?
Can you detail your signal wiring connections?
Regards,
Fausto
Hey Jonathan,
The USB-3105 output impedance is less than an ohm. Impedance is not the issue. Is the connection to the customer's A/D single-ended or differential? Is there or was there isolation. I ask because a ground loop, if not too severe, will make a signal noisy.
best regards,
John