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PCI-DAS64/M1/16 User's Guide
The analog output circuits are calibrated for gain and offset. Gain calibration of the analog outputs is performed
via DAC reference adjustments. Offset adjustments for the analog outputs are made in the output buffer section.
The tuning range of this adjustment yields maximum DAC and output buffer offsets.
Analog output calibration is shown in
Trim DAC
Coarse
Trim DAC
Fine
Figure 5-3
. This circuit is duplicated for both DAC0 and DAC1
DAC
Ref
Gain
Adjust
Trim DAC
Coarse
Trim DAC
Fine
Figure 5-3. Analog out calibration
5-3
Calibrating the PCI-DAS64/M1/16
Analog
Out
Offset
Adjust
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