Hardware Registers
29
4.6
Voltage Output DA Conversion
The DA converter used in PCI-6208/6216-GL Series cards are
16-bit resolution with ±10 V bi-polar output ranges. Therefore,
the data registers are all 16-bit sign values. The digital value
ranges from -32768 (0X8000) to +32767 (0x7FFF) correspond
to -10 V to +10 V respectively. The table displays the digital
value and its corresponding hex value and analog output volt-
age.
Table 4-5: Voltage DA Conversion Table
Digital Value
HEX value
Output Voltage
32767 0x7FFF
+9.99969V
16384 0x4000 +5.00000V
8192 2.50000V
1 0x0001
0.00031V
0 0x0000
0.00000V
-1 0xFFFF
-0.00031V
-8192 0xE000
-2.50000V
-16384 0xC000
-5.00000V
-32767 0x8001 -9.99969V
-32768 0x8000 -10.00000V
