Synchronization between Analog Output and Input

[SATEESH KUMAR]

I am using NI 4551 (DSA card)and using NI-DAQ APIs for writing and reading throch Analog Channels. As I am writing and reading the data I am getting a delay of 18mSec at the input channel.How can I avoid this delay and synchronize Analog Output with Analog Input.

[bspears]

Hello,

It seems most likely that you are seeing the filter delay that is inherent in the device because it uses delta-sigma converters. To read more about this delay look at page 3-8 in the NI 4551/4552 User Manual linked below:

https://www.ni.com/docs/en-US/bundle/321934a/resource/321934a.pdf

Hope this helps!

Brian Spears