MATLAB CODE

An op-amp based inverting amplifier circuit is shown in Figure 1-4 in Section 1 of the Op Amp Applications Handbook (by Walt Jung, 2005). The amplifier gain is a function of R_F and R_G. Write a MATLAB script to perform a Monte Carlo simulation of this circuit. Let R_F be 6.8 k, 5% and R_Gbe 2.2 k, 5%, both with a uniform distribution. For each iteration of the simulation generate random resistor values for R_F and R_G, compute the gain of the amplifier circuit using those values, and store the result. Perform 2000 simulations. When the simulation is complete, compute and print the mean and standard deviation of the gain, and plot a histogram of the gain. Repeat the simulation a second time (do this without quitting MATLAB so you get different random values). Comment on whether or not the results are consistent (if they are not, increase the number of iterations and try again).

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