Analog Electronics with LabVIEW®

PA.6. Discrete Output Voltage from the DAQ

The VIs for this exercise are in Project A.llb. The first example is for DAC (digital-to-analog conversion), where the receiving resolution is much smaller (better) than the sending resolution. This therefore reveals the discrete nature of the output voltage. The VI for assessing the discrete nature of DAQ operation is Discrete.vi. This VI first sweeps the requested voltage to be sent out in a quasi-continuous manner. The programmed sweep increment size is Max Volts/100. For example, for a sweep range of Max Volts = 10 mV, the sweep increments are 100 μV. However, the output voltage has a resolution of 4880 μV (bipolar). > The receiving function is set with high limit and low limit of magnitude 0.1 ...