Could you help me to figure out the input impedance of the AD8510, AD8512 and AD8513 operational amplifiers please? I can't figure out the
input impedance data of this device from the datasheet. It was suggested to us as a potential replacement for TI OPA2107 so we are looking for a high input impedance device. The OPA2107 input impedance is 10^14 ohm. What is the input impedance of AD8510?
Thanks for your help in advance.