Hello, I am trying to make a meter, I read the datasheet, the publications of this forum, application notes and all the material I could find about this device. To start the tests I made the circuit they recommend in the datasheet, but when measuring the internal reference is zero. Another thing that caught my attention, is that I could measure continuity between AGND and DGND, but in theory they should not be connected, not internally. I have already bought two ADE7753 but with both I have found the same results. At this point I do not know what to do and I run out of ideas, I hope you can help me. The communication and calibration part I have already advanced, but I could not prove my code. Sorry for my English, I did not write it and I went to the translator to write this question.