Op - Amp Example 2

Example 2: Determine the output voltage for the inverting amplifier for the give case.

Assume that op-amp is a 741.

Answer:

As they said op-amp is 741, you should consider this by default.

Consider A=2,00,000 , R_i = 2Mohm, R₀=75 ohm, +V_cc= +15 V, -V_ee=-15 V and output voltage swing = ±14V.

So now for case 1:

  

This is the theoretical value. The actual value will be a negative saturation voltage of -14 V.

For case 2:

This means the output is a sine wave since it is less than the output voltage swing of ±14V.