PXIe-6739 Bit Voltage

[lu_tan]

PXIe-6739 is a 16-bit analog output module. It has 65536 steps. I would like to know whether it can output 5mV. I looked at its user manual for its VREF, but cannot find a VREF value or its bit voltage. Bit voltage = VREF / 65536. Can someone please help?

Best regards,

Lu Tan

[santo_13]

In cases where you couldn't find the Vref, look for the output range as that translates to the Vref.

In this case, looking at 6739 datasheet, 

+/-10V is mapped to 0-65535

This works your resolution to 20V / 65535 = 305uV per LSB.

But, this is not enough, you need to look at the accuracy specs too,

When you generate 5mV, the actual could be 5+/-3mV (considering offset error being larger)