Hi
Im using AD8555 in my project and when my adc wasnt connected on GND, AD8555 was working fine. I was sending offset code 0B10000000 so that Vdac would be 1.65V and using oscilloscope Vout was indeed 1.6V or with offset code 0B00000000 Vout was near 0V and yea Vpos-Vneg is near 0 in my case. But now that adc is correctly connected on GND when i send comand offset code 0B10000000 Vout dosnt change it stays near 0V, also tried other offsset code values it doenst cnahge at all. Do you know what might be cosing this?
Best regards,
Petar.