Chapter5 Calibratingthe Device
©NationalInstruments Corporation 5-3 ATE Series User Manual
a1 6-bit device,the external reference should be at least ±0.001%
(±10ppm) accurate.
Fora detailed calibrati on procedure for the ATE Series device, refer to
the ES eries Calibration Procedure by clicking Manual Calibration
Proceduresat ni.com/calibration.
Other Considerations
The CalDACs adjust the gain error ofeach AO channelby adjusting the
value of the reference voltage supplied to that channel. This calibration
mechanismis designed to work only with the internal 10 V reference. Thus,
in general, it is not possible to calibrate the AO gain error when using an
external reference. In this case, it is advisable to account for the nominal
gainerror of the AO channel either in software or with external hardware.
Refert o Appendix A, Specifications, for AO gain error information.