Perfect, so the sinewave and the reading at 1kHz are ok.
The Arduino DUE has two DAC http://arduino.cc/en/Main/ArduinoBoardDue, but I cannot find the maximal practical voltage reading speed.
Do you think that it is possible to make a stable voltage amplifier to 500V? as commercial electronic cost various 1000s euros I am wandering if there is something I am neglecting...
Cheers!
R.