How do I output an arbitratry sequence of analog values on one of 16 channels?

[mkdieric]

I need to generate a sequence of analog voltage values, each time on one of the 16 channels. Typically 15000 samples with a highest update rate of 5 kS/s. What is the cheapest (PCI) solution? A NI6703 analog output card cannot perform waveform generation. A NI6713 can but has only 8 outputs (an two cards is too expensive).

[Filipe A.]

Hello;

A good solution for you will be to combine two of the 6713 and use the RTSI bus to sinchronize both boards with one clock signal. That will allow you to have the waveform generation capability of the 6713 and, as you will sync both boards with the same clock signal, that will allow you to have 16 output channels generating synchronized waveforms.
Hope this helps.
Filipe

[mkdieric]

Thanks for the answer, but as I said, two cards is too expensive, but in the meantime, I found another solution. Analog Devices recently released a 32 channel 14 bit infinite sample and hold IC (AD5533). And since I output a waveform always on one channel at a time I can use this with my PCI-MIO-16E-4 with a 4-bit address.
But thanks anyway,
Manu.