User`s guide

18 • Operation Theorem
Voltage (Volts)
Bipolar Uni-polar
A/D Data (Hex)
Direct Binary
Unsigned
Decimal Value
±10V ±5V
0~10V
FFF 4095 +9.9951 +4.9975 +9.9951
C00 3072 +5.0000 +2.5000 +7.5000
801 2049 +0.0049 +0.0025 +5.0049
800 2048 0.0000 0.0000 +5.0000
7FF 2047 -0.0049 -0.0025 +4.9951
400 1024 -5.0000 -2.5000 +2.5000
000 0 -10.0000 -5.0000 0.0000
The formula between the A/D data and the analog value is Direct Binary
Coding:
Bipolar ±10V:
Voltage = (AD_Data * 20) / (4096 * gain) – (10 / gain)
Bipolar ±5V:
Voltage = (AD_Data * 10) / (4096 * gain) – (5 / gain)
Uni-polar +10V:
Voltage = (AD_Data * 10) / (4096 * gain)
where the gain is 1,2,4,8,16