Hello, I want to measure the Input Bias Current and the Offset Voltage of an op amp for my electronics lab experiment. I tried to design a circuit for that purpose but it didn't work on (Multisim software), so obviously I didn't build it. I've found this PDF online; and as you can see on page 4 it suggest a way to measure them. But I couldn't understand how exactly can I do it? Please help me with a suitable circuit or an explanation for the one in the PDF. Thank you.