Ringin on voltage step using AO 6731

[dmourer]

I am using the AO Update Channel.vi with a PCI-6731 card to step through several voltage levels, and reading the output with a NI-4472 input card. I am getting ringing before and after each step. The data was taken at 15k samples/sencond using referenced single ended mode. I am attaching an example of the data. Any ideas?

[Sean_C.]

Hello dmourer,

Thank you for contacting National Instruments.

Is this behavior occurring on all AO Channels? Also, Have you tried measuring these voltages with an oscilloscope? I would like to make sure that the ringing is ocurring on the PCI-6731, and not the NI-4472.

Please respond with these details and I will be glad to continue troubleshooting with you.

Sean C.
Applications Engineer
National Instruments