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Resolution of PXI-6704 in different output ranges

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I have a requirement for increasing the voltage resolution of the output from a PXI-6704 card. I don't have direct access to the card at the moment, so can't test this for myself!

 

The last time I tested my LabVIEW code, I had the voltage output range set to +/-10 V. This meant that I had a resolution of 20 V / 2^16 = 0.3 mV (as it's 16 bit).

 

Since all of my voltages are in the range 0.40 to 0.46 V, can I adjust the output range to, e.g., +/-1 V, so that my resolution will be 0.03 mV? Or is the voltage resolution independent of voltage range? 

 

Many thanks

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Accepted by topic author mrendell

Hi mrendell,

The range is fixed I'm sorry, maybe look at a different DAQ card if you need more resolution.

James 

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