I would like to know AD5592R's input impedance value when I/O is configuration as an A\D input pin.
There seems no information on Datasheet.
Thank you for your help in advance.
I have attached a preliminary draft of the next revision of the data sheet. It contains information on how to calculate the input impedance of the ADC inputs. The impedance changes depending on a number of factors such as sample rate, the voltage difference between successive channels in a sequence.
This also applies to the AD5593R which is the I2C version.