How can you output an AC analog signal from a USB-6009?

[BoskoDaClown]

The trick is I would like to output an AC voltage at a user defined frequency and amplitude from the DAQ board.

Any thoughts would be very helpful...

[Dennis_Knutson]

What is the frequency range. As I'm sure you saw from the specs, the analog out is software timed with a max of about 150 Samples/sec. You would have to write one point of the waveform at a time and you would be subject to quite a bit of jitter.

[BoskoDaClown]

I am doing an experiment testing ELF magnetic fields, the frequency range would be between 1 and 15 Hz with an amplitude of about 0.8 V. 

[BoskoDaClown]

Does anyone know if this can be accomplished by using this DAQ board?

[Dennis_Knutson]

Since you are sending such a low frequency, then yes with the above caution about jitter.

Create your waveform and pass it through a for loop with a DAQmx Write inside. Inside the while loop you will have a Delay function. The value of the delay will be the dt value from the waveform data type.