Consider the noninverting amplifier circuit shown in Fig. 2.42. As shown, the circuit is designed for a nominal gain (1+R/R₁) = 10 V/V. It is fed with a low-frequency sine-wave signal of peak voltage V, and is connected to a load resistor R. The op amp is specified to have output saturation voltages of ±13 V and output current limits of +20 mA. (a) For V, = 1 V and R₁ = 1 ks, specify the signal resulting at the output of the amplifier. (b) For V, = 1.5 V and R₁ = 1 ks, specify the signal resulting at the output of the amplifier. (c) For RL = 1 ks, what is the maximum value of V, for which an undistorted sine-wave output is obtained? (d) For V, = 1 V, what is the lowest value of R, for which an undistorted sine-wave output is obtained? ة 1 ΚΩ w R₁ R₂ = 9 k (a) ww R₁ Vo 0 15 V 13 V -13 V- -15 V (b) Figure 2.42 (a) A noninverting amplifier with a nominal gain of 10 V/V designed using an op amp that saturates at +13-V output voltage and has £20-mA output current limits. (b) When the input sine wave has a peak of 1.5 V, the output is clipped off at ±13 V.