Thank you for your reply and explaination. I fully agree that we have an analog settling issue. That is also why I came up with the IDAC settling time. I also tried removing all filters by just adding a jumper wire from the IDAC output to our reference resistor and measured the settling time of the reference voltage. That way no external capacitance gets charged and the ADS124S08 can switch at full speed. Unfortunately even then the settling time was not much better. I tried with different current magnitudes and other settings, with external filters and without and the fastest I came up with was ~20ms. I will add the schematics and some additional plots regarding my measurements on Monday. For me it would be interesting if anyone knows how long the settling time effectively should be when there is only the bare minimum connected. Best regards Jonas Pfaff
↧