USB 6218 Analog Input and Analog Output

[bhebs]

I have a USB 6218 DAQ board and for a project need to do the following:

-Record 10 differential analog input signals

-Output a selectable voltage as analog output

-Output a single Digital output for a logic signal

My question is if and how the sample rate for the input affects the update rate for the analog output.  The board specs state a 250kS/sec sampling rate for analog input AND a 250kS/sec for analog output.  If I'm sampling at 250kS/sec on 10 differential signals (= 25000 Hz per channel), does this mean that I can't update the output signal at 250kS/sec?  Are the input and output linked in anyway?

[ColdenR]

The input and output sampling rates should be independent. The hardware handling the input is separate from the hardware handling the output. So you should be able to sample 10 signals at 25kS/sec and output a signal at 250kS/sec.

The best way to be sure though is to write a simple program to test 10 inputs at 25kS/s and one output at 250kS/s. If you get the sampling rates you expect, then you know if will work for sure. You could also do this test in Measurement and Automation Explorer (MAX). It's possible that maxing out the device like that will slow down operation slightly, but it should still be able to work at full speed.