If I only use a few channels on PCI-6259 to increase sample rate, do channels numbers need to be contiguous?

[ase-tom]

We are looking at purchasing a PCI-6259 board for use on a Linux machine. We would use NIDAQmx to access the card. If we decide to use only a few channels in order to boost the sampling rate, do I need to select specific channels?

For instance, the card rate is 1MHz. If I select channel 1 and channel 2, I can sample each channel at 500KHz. Could I select Channel 8 and Channel 13 and still be able to sample each channel at 500KHz? Or do specific channels need to be used when a subset of channels are selected?

Thanks,

-Tom

[taper]

These cards have a single A/D converter and an internal mux that sends one of the 32 inputs to it.  It doesn't matter which of the AI channels is selected, or what order they're read in.  I think the only time you need to worry about pairing channels is when you take differential measurements, each channel has it's own pair then.

[ase-tom · Accepted solution]

Thanks for the quick answer.

-Tom