The output stage of the 741 op-amp is shown in Figure 13.9. Transistor Q13 may be replaced with a constant-current source equal to 0.18 mA. Use standard transistors, (a) Using a computer simulation, plot the voltage transfer function υ 0 versus υ 13. What is the voltage gain? Has the crossover distortion been eliminated? (b) Apply an input voltage tii3 that establishes an output voltage of υ0 = 5 V. Then set RL – 0. Find the output short-circuit current and the transistor currents.
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