I am trying to simulate AD822ARZ in Altium Designer 09. It is working fine when i m using dual supply (+/-5V or +/-18V). But when i use single supply (0V 18V) there is an offset of 7mV. I m sweping the current I1 from 20mA to 1A with steps of 20mA.
Am i doing something wrong or is there a problem in the model?