We use AMC1200, at the moment of power shutdown, output abnormal analog pulse.
Below is my test condition:
1. Isolated 5V power supply at both ends of the chip
2. Short the differential input pins 2 and 3
3. Disconnect the rear differential operational amplifier circuit and delete R7 and R10, as shown in the schematic diagram:
Test results: at the moment of power failure, amc1200 differential output pin 6 and pin 7 have isolated pulse analog voltage output