Problem 1RQ: The two input terminals of an op amp are labeled as: (a) high and low. (b) positive and negative.... Problem 2RQ: For an ideal op amp, which of the following statements are not true? (a) The differential voltage... Problem 3RQ: For the circuit in Fig. 5.40, voltage vo is: (a)6 V (b)5 V (c)1.2 V (d)0.2 V Figure 5.40 Problem 4RQ: For the circuit in Fig. 5.40, current ix is: (a)600 A (b)500 A (c)200 A (d)1/12 A Problem 5RQ: If vs = 0 in the circuit of Fig. 5.41, current io is: (a)10 A (b)2.5 A (c)10/12 A (d)10/14 A Problem 6RQ: If vs = 8 mV in the circuit of Fig. 5.41, the output voltage is: (a)44 mV (b)8 mV (c)4 mV (d)7 mV Problem 7RQ: Refer to Fig. 5.41. If vs = 8 mV, voltage va is: (a)8 mV (b)0 mV (c)10/3 mV (d)8 mV Problem 8RQ: The power absorbed by the 4-k resistor in Fig. 5.42 is: (a)9 mW (b)4 mW (c)2 mW (d)1 mW Problem 9RQ: Which of these amplifiers is used in a digital-to-analog converter? (a) noninverter (b) voltage... Problem 10RQ: Difference amplifiers are used in (please check all that apply): (a) instrumentation amplifiers (b)... Problem 1P: The equivalent model of a certain op amp is shown in Fig. 5.43. Determine: (a)the input resistance... Problem 2P: The open-loop gain of an op amp is 50,000. Calculate the output voltage when there are inputs of +10... Problem 3P: Determine the voltage input to the inverting terminal of an op amp when 40 V is applied to the... Problem 4P: The output voltage of an op amp is 4 V when the noninverting input is 1 mV. If the open-loop gain of... Problem 5P: For the op amp circuit of Fig. 5.44, the op amp has an open-loop gain of 100,000, an input... Problem 6P: Using the same parameters for the 741 op amp in Example 5.1, find vo in the op amp circuit of Fig.... Problem 7P: 5.7 The op amp in Fig. 5.46 has Ri = 100 k, Ro = 100 , A = 100,000. Find the differential voltage vd... Problem 8P: Obtain vo for each of the op amp circuits in Fig. 5.47. (a) (b) Figure 5.47 For Prob. 5.8. Problem 9P: Determine vo for each of the op amp circuits in Fig. 5.48. Figure 5.48 For Prob. 5.9. Problem 10P Problem 11P: Using Fig. 5.50, design a problem to help other students better understand how ideal op amps work.... Problem 12P: Calculate the voltage ratio vo/vs for the op amp circuit of Fig. 5.51. Assume that the op amp is... Problem 13P: Find vo and io in the circuit of Fig. 5.52. Figure 5.52 For Prob. 5.13. Problem 14P: Determine the output voltage vo in the circuit of Fig. 5.53. Figure 5.53 For Prob. 5.14. Problem 15P: (a)Determine the ratio vo/is in the op amp circuit of Fig. 5.54. (b)Evaluate the ratio for R1 = 20... Problem 16P: Using Fig. 5.55, design a problem to help students better understand inverting op amps. Figure 5.55... Problem 17P Problem 18P: For the circuit shown in Figure 5.57, solve for the Thevenin equivalent circuit looking into... Problem 19P: Determine io in the circuit of Fig. 5.58. Figure 5.58 For Prob. 5.19. Problem 20P: In the circuit of Fig. 5.59, calculate vo of vs = 2 V. Figure 5.59 For Prob. 5.20. Problem 21P: Calculate vo in the op amp circuit of Fig. 5.60. Figure 5.60 For Prob. 5.21. Problem 22P: Design an inverting amplifier with a gain of 15. Problem 23P: For the op amp circuit in Fig. 5.61, find the voltage gain vo/vs. Figure 5.61 For Prob. 5.23. Problem 24P: In the circuit shown in Fig. 5.62, find k in the voltage transfer function vo = kvs. Figure 5.62 For... Problem 25P: Calculate vo in the op amp circuit of Fig. 5.63. Figure 5.63 For Prob. 5.25. Problem 26P: Using Fig. 5.64, design a problem to help other students better understand noninverting op amps.... Problem 27P: Find vo in the op amp circuit of Fig. 5.65. Figure 5.65 For Prob. 5.27. Problem 28P Problem 29P: Determine the voltage gain vo/vi of the op amp circuit in Fig. 5.67. Figure 5.67 For Prob. 5.29. Problem 30P: In the circuit shown in Fig. 5.68, find ix and the power absorbed by the 20-k resistor. Figure 5.68... Problem 31P: For the circuit in Fig. 5.69, find ix. Figure 5.69 For Prob. 5.31. Problem 32P: Calculate ix and vo in the circuit of Fig. 5.70. Find the power dissipated by the 60-k resistor.... Problem 33P: Refer to the op amp circuit in Fig. 5.71. Calculate ix and the power absorbed by the 3-k resistor.... Problem 34P: Given the op amp circuit shown in Fig. 5.72, express vo in terms of v1 and v2. Figure 5.72 For Prob.... Problem 35P: Design a noninverting amplifier with a gain of 7.5. Problem 36P: For the circuit shown in Fig. 5.73, find the Thevenin equivalent at terminals a-b. (Hint: To find... Problem 37P: Determine the output of the summing amplifier in Fig. 5.74. Figure 5.74 For Prob. 5.37. Problem 38P: Using Fig. 5.75, design a problem to help other students better understand summing amplifiers.... Problem 39P: For the op amp circuit in Fig. 5.76, determine the value of v2 in order to make vo = 16.5 V. Figure... Problem 40P: Referring to the circuit shown in Fig. 5.77, determine Vo in terms of V1 and V2. Figure 5.77 For... Problem 41P: An averaging amplifier is a summer that provides an output equal to the average of the inputs. By... Problem 42P: The feedback resistor of a three-input averaging summing amplifier is 50 k. What are the values of... Problem 43P: The feedback resistor of a five-input averaging summing amplifier is 40 k. What are the values of... Problem 44P: Show that the output voltage vo of the circuit in Fig. 5.78 is vo=(R3+R4)R3(R1+R2)(R2v1+R1v2) Figure... Problem 45P: Design an op amp circuit to perform the following operation: vo = 3.5 v1 2.5v2 All resistances must... Problem 46P: Using only two op amps, design a circuit to solve vout=v3v15+v1v22 Problem 47P: The circuit in Fig. 5.79 is for a difference amplifier. Find vo given that v1 = 1 V and v2 = 2 V.... Problem 48P: The circuit in Fig. 5.80 is a differential amplifier driven by a bridge. Find vo. Problem 49P: Design a difference amplifier to have a gain of 4 and a common-mode input resistance of 20 k at each... Problem 50P: Design a circuit to amplify the difference between two inputs by 2.5. (a) Use only one op amp. (b)... Problem 51P: Using two op amps, design a subtractor. Problem 52P: Design an op amp circuit such that vo = 4v1 + 6v2 3v3 5v4 Let all the resistors be in the range of... Problem 53P: The ordinary difference amplifier for fixed-gain operation is shown in Fig. 5.81(a). It is simple... Problem 54P: Determine the voltage transfer ratio vovs in the op amp circuit of Fig. 5.82, where R = 10 k. Figure... Problem 55P: In a certain electronic device, a three-stage amplifier is desired, whose overall voltage gain is 42... Problem 56P: Using Fig. 5.83, design a problem to help other students better understand cascaded op amps. Figure... Problem 57P: Find vo in the op amp circuit of Fig. 5.84. Problem 58P: Calculate io in the op amp circuit of Fig. 5.85. Figure 5.85 For Prob. 5.58. Problem 59P: In the op amp circuit of Fig. 5.86, determine the voltage gain vovs. Take R = 10 k. Figure 5.86 For... Problem 60P: Calculate vo/vi in the op amp circuit of Fig. 5.87. Figure 5.87 For Prob. 5.60. Problem 61P: Determine vo in the circuit of Fig. 5.88. Figure 5.88 For Prob. 5.61. Problem 62P: Obtain the closed-loop voltage gain vo/vi of the circuit in Fig. 5.89. Figure 5.89 For Prob. 5.62. Problem 63P: Determine the gain vovi of the circuit in Fig. 5.90. Figure 5.90 For Prob. 5.63. Problem 64P: For the op amp circuit shown in Fig. 5.91, find vo/vs. Figure 5.91 For Prob. 5.64. Problem 65P: Find vo in the op amp circuit of Fig. 5.92. Problem 66P: For the circuit in Fig. 5.93, find vo. Problem 67P: Obtain the output vo in the circuit of Fig. 5.94. Figure 5.94 For Prob. 5.67. Problem 68P: Find vo in the circuit of Fig. 5.95, assuming that Rf = (open circuit). Figure 5.95 For Probs. 5.68... Problem 69P: Find vo in the circuit of Fig. 5.95, assuming that Rf = (open circuit). Figure 5.95 For Probs. 5.68... Problem 70P: Determine vo in the op amp circuit of Fig. 5.96. Problem 71P: Determine vo in the op amp circuit of Fig. 5.97. Problem 72P: Find the load voltage vL in the circuit of Fig. 5.98. Figure 5.98 For Prob. 5.72. Problem 73P: Determine the load voltage vL in the circuit of Fig. 5.99. Figure 5.99 For Prob. 5.73. Problem 74P: Find io in the op amp circuit of Fig. 5.100. Figure 5.100 For Prob. 5.74. Problem 75P: Rework Example 5.11 using the nonideal op amp LM324 instead of uA741. Example 5.11 Use PSpice to... Problem 76P: Solve Prob. 5.19 using PSpice or MultiSim and op amp uA741. Determine io in the circuit of Fig.... Problem 77P: Solve Prob. 5.48 using PSpice or MultiSim and op amp LM324. The circuit in Fig. 5.80 is a... Problem 78P: Use PSpice or MultiSim to obtain vo in the circuit of Fig. 5.101. Problem 79P: Determine vo in the op amp circuit of Fig. 5.102, using PSpice or MultiSim. Problem 80P: Use PSpice or MultiSim to solve Prob. 5.70. Determine vo in the op amp circuit of Fig. 5.96. Problem 81P: Use PSpice or MultiSim to verify the results in Example 5.9. Assume nonideal op amps LM324. Find vo... Problem 82P Problem 83P: Design a six-bit digital-to-analog converter. (a) If |Vo| = 1.1875 V is desired, what should... Problem 84P: A four-bit R-2R ladder DAC is presented in Fig. 5.103. (a) Show that the output voltage is given by... Problem 85P: In the op amp circuit of Fig. 5.104, find the value of R so that the power absorbed by the 10-k... Problem 86P: Design a voltage controlled ideal current source (within the operating limits of the op amp) where... Problem 87P: Figure 5.105 displays a two-op-amp instrumentation amplifier. Derive an expression for vo in terms... Problem 88P: Figure 5.106 shows an instrumentation amplifier driven by a bridge. Obtain the gain vo/vi of the... Problem 89CP: Design a circuit that provides a relationship between output voltage vo and input voltage vs such... Problem 90CP: The op amp circuit in Fig. 5.107 is a current amplifier. Find the current gain io/is of the... Problem 91CP: A noninverting current amplifier is portrayed in Fig. 5.108. Calculate the gain io/is. Take R1 = 8 k... Problem 92CP: Refer to the bridge amplifier shown in Fig. 5.109. Determine the voltage gain vovi. Figure 5.109 For... Problem 93CP: A voltage-to-current converter is shown in Fig. 5.110, which means that iL= Avi if R1R2 = R3R4. Find... format_list_bulleted