[EricVanWyk]

I am only using LabVIEW this year, since I don't know it yet. Hopefully a C++ user can chime in with the complement to this post.

In order to use Oversampling, you will need to use GetAverageVoltage instead of GetVoltage. You may also want to use SetAveraging from the advanced palette in order to dictate exactly how much oversampling you want. Use oversampling, not averaging.

This takes a number of bits rather than a number of sampling. If you choose (for example) 8 bits of oversampling, it will take (2^8=)256 samples at a time and theoretically give you 5mV/256 = 20uV resolution. Bear in mind that this makes huge assumptions about the quality of the noise, so don't think of oversampling as the golden hammer with which to solve all resolution problems.