XRD9829REF
XRD9829
VDD
VIN0 - VIN2
VRT
C |
|
I | VIN0 |
S | |
| RL |
| VIN3 |
5V |
|
100K
34K
VRB
Figure 7. Simplified Block Diagram Showing Global Offset Adjustment by XRD9829
Using External Resistor Ladder
17.Set the dip switches to 0111000000 to select the internal offset DAC for fine offset adjustment. Push the Serial Port button. From the CAPTURE menu select SNAP SHOT. The offset should now move the output of the CIS to almost zero scale.
Please refer to data sheet for offset adjustment. A typical result of the fine offset adjustment is shown below.
Rev. 1.00
11
