Has anyone ever use the Winbond AD converter W55AD808 ? I get a problem on it. The 7th channel cann't get the current value. When using the 7th channel to sense 5V (full range), it read 0x40 only. when sensing 1.5V, it read 0x20. .. seems proprotional to the sensing voltage, just the full range is not correct.
The other channels (0 to 6) are all right.