05-14-2019 01:54 PM
We are having trouble with our NI USB-6343 device. Using AnalogOut, the output values supported are only -4 to +4 volts. We cannot get any voltage values above or below to work properly. Can someone please tell me what could be wrong, as we should be seeing values from -10 to +10 volts.
Solved! Go to Solution.
05-16-2019 11:52 AM - edited 05-16-2019 11:52 AM
Hi Brianbat,
That behavior isn't right. How are you measuring the output? Do you have a load on the terminal? The card can only drive 5 mA so your voltage would probably start dropping if you are pulling more current.
Best,
David F.
Technical Support Engineer
National Instruments
05-17-2019 07:00 AM
800 Ohm (or 1k) load?
05-17-2019 07:54 AM - edited 05-17-2019 07:59 AM
05-17-2019 07:56 AM
Thank you for the answers. The 50ohm impedence was causing some clipping on the top and low peaks. We have since solved the problem by connecting a voltage follower circuit to overcome the impedence issue.