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Measurement Computing PCI-DAS6402/16 User Manual

Page 21

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PCI-DAS6402/16 User's Guide

Calibrating the PCI-DAS6402/16

The analog output circuits are calibrated for gain and offset. Gain calibration of the analog outputs is performed
via DAC reference front-end calibration system.

Analog output calibration is shown in Figure 4-2. This circuit is duplicated for both DAC0 and DAC1.

Ref

DAC

Gain
Adjust

Analog Out

Offset
Adjust

Trim DAC

Coarse

Trim DAC

Fine

Trim DAC

Coarse

Trim DAC

Fine

Figure 4-2. Analog output calibration

4-2