AMC1200: A source for AMC1200

Thanks Tom for the answer. I bought this ampliffier to measure the total armonic distortion of the 220V @50Hz voltage signal. In EEUU it's 110V @60Hz. To power the first step, VDD1 and GND1 Can I use the next voltage source, a capacitive source. What do you think? 

As the AMC1200 max current feed is 8mA I used the 625 Ohm resistor to simulate it. The power factor it's 0.02 but as the reactive power is small there is no big problem in the measurement. 

And this it's the voltage ripple. Almost it's has a peak of 100mV