I'm using the 741 op-amp and I want to check its open-loop gain. The model specifications in Multisim show that A = 200000 for this op-amp.
This is the circuit I am using:
The output I am getting is a bit strange to me. With an input signal of 1 Hz and 1 V amplitude, I am getting a square wave, like so, with an amplitude of 11.18 V: (cyan represents input signal, and red represents output signal)
I supposed that this is a result of clipping, as $$V_o = A\times V_{in} = 200000\times V_{in}$$ which does exceed 12 V by a lot. So I tried with an input of 25 μV, as then $$V_o=200000\times 25 \times 10^{-6}=5\ \mathrm{V}$$
But then, this is my output: (now a straight line at 11.115 V)
From my understanding, it should have been a sine wave with 5 V amplitude. What is going wrong here?