Keysight DAQ970A Guia Del Usuario página 271

You can set the output voltage to any value between +12 VDC and -12 VDC, in 0.1 mV steps. Each DAC is earth
referenced; it cannot float.
Each DAC channel is capable of supplying 15 mA maximum current.
You must limit the DAC output current to 40 mA total for each slot (two DAC channels).
To maintain the rated output accuracy, the load (RL in the diagram shown above) must be greater than 1 kΩ.
DAC errors
The output of a DAC varies with temperature. If possible, you should operate the instrument at a stable temperature
and as close as possible to the calibration temperature of the DAC for greater accuracy, or perform autocalibration
to recalibrate the DAC if the temperature has changed much from calibration temperature.
The output of a DAC also exhibits two other types of errors: differential error and integral error.
Types of errors
Differential error
Integral error
Keysight DAQ970A/DAQ973A User's Guide
Description
Refers to the smallest possible change in voltage.
The DAC output is not linear, but is stepped as progressively larger (or smaller) voltages are pro-
grammed. The step is in 100 μV.
Refers to the difference between the programmed voltage and the actual output voltage from the
DAC.
4 Measurement Tutorials
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