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PCI-DAS6031 & PCI-DAS6033 User's Guide
A similar method is used to calibrate the analog output components. A trim DAC is used to adjust the gain of
the DAC. A separate DAC is used to adjust offset on the final output amplifier. The calibration circuits are
duplicated for both analog outputs (see
Trim DAC
Figure 5-2
).
D/A
Ref
Gain
Adjust
Trim DAC
Figure 5-2. Analog output calibration – basic elements
5-2
Calibrating the PCI-DAS6031 and PCI-DAS6033
Analog Out
Offset
Adjust
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