GATE2014-13

Question

For the op-amp shown in the figure, the bias currents are $I_{b1}=450\;nA$ and $I_{b2}=350\;nA$. The values of the input bias current $(I_B)$ and the input offset current $(I_f)$ are:

• A. $I_B=800\;nA, \;I_f=50\;nA$
• B. $I_B=800\;nA, \;I_f=100\;nA$
• C. $I_B=400\;nA, \;I_f=50\;nA$
• D. $I_B=400\;nA, \;I_f=100\;nA$