We have used ADUM3223 to drive high Voltage output, but it needs two different supplies (15V). Your colleague at Embedded World 2014 recommended ADuM3220. But I didn’t find the work voltage of ADuM3320. Could you please tell me, if this chip can also drive over 800V between High-side and Low-side, or how much voltage it can drive?
The output channels of ADuM3220 share the same GND so if your application requires isolation between the two outputs then ADuM3220 does not fit. Please find a short summary attached.