User`s guide

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Operation Theory

In this chapter, the detail operation theory of the PCI-6308V and PCI-6308A

is described. Before programming or applying the PCI-6308 card to your

application, please go through this chapter to understand the features first.

4.1 Voltage Output

There are 8 voltage output channels for PCI-6308V and 6308A. For voltage

output operation, you have to understand:

1. How to set the voltage output range.

2. The DA data format.

4.1.1 Voltage Output Range Selection

The DA converters of the PCI-6308 are Burr-Brown DAC4814AP. The DAC

has a 12-bit resolution with bipolar or unipolar output. The voltage output

range is set by JP1~JP8. Please refer to section 2.7 for detail of the jumper

settings. The selectable range is +/-10V, 0~+10V and 0V ~ user defined

voltage. User-defined voltage is inputted from the DB-37 connector at pin #6.