4.26 Consider the operational rectifier or superdiode circuit of Fig. 4.28(a), with R = 1 kΩ. For vI = 10 mV, 1 V, and –1 V, what are the voltages that result at the rectifier output and at the output of the op amp? Assume that the op amp is ideal and that its output saturates at ±12 V. The diode has a 0.7-V drop at 1-mA current.
10 mV, 0.59 V; 1 V, 1.7 V; 0 V, –12 V
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