Measurement-computing PCI-DAS6402/16 Manuale Utente Scaricare il pdf (Pagina 21)

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

A

nalog Out

Offset

A

djust

Trim DAC

Coarse

Trim DAC

Fine

Trim DAC

Coarse

Trim DAC

Fine

Figure 4-2. Analog output calibration

4-2

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