Basic Engineering Circuit Analysis
11th Edition
ISBN: 9781118992661
Author: Irwin, J. David, NELMS, R. M., 1939-
Publisher: Wiley,
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Textbook Question
Chapter 4, Problem 4P
For an ideal op-amp, the voltage gain and input resistance are infinite while the output resistance is zero. What are the consequences for
(a) the op-amp’s input voltage?
(b) the op-amp’s input currents?
(c) the op-amp’s output current?
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Answer the following questions a) What assumption do we make for an ideal op - amp? b) Explain what slew rate is why it is important characteristic for an op amp.
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Chapter 4 Solutions
Basic Engineering Circuit Analysis
Ch. 4 - An amplifier has a gain of 15 and the input...Ch. 4 - An amplifier has a gain of 5 and the output...Ch. 4 - An op-amp based amplifier has supply voltages of...Ch. 4 - For an ideal op-amp, the voltage gain and input...Ch. 4 - Revisit your answers in Problem 4.4 under the...Ch. 4 - Revisit the exact analysis of the inverting...Ch. 4 - Revisit the exact analysis of the inverting...Ch. 4 - An op-amp based amplifier has 18V supplies and a...Ch. 4 - Assuming an ideal op-amp, determine the voltage...Ch. 4 - Assuming an ideal op-amp, determine the voltage...
Ch. 4 - Assuming an ideal op-amp in Fig. P4.11, determine...Ch. 4 - Assuming an ideal op-amp, find the voltage gain of...Ch. 4 - Assuming an ideal op-amp in Fig. P4.13, determine...Ch. 4 - Determine the gain of the amplifier in Fig. P4.14....Ch. 4 - For the amplifier in Fig. P4.15, find the gain and...Ch. 4 - Using the ideal op-amp assumptions, determine the...Ch. 4 - Using the ideal op-amp assumptions, determine...Ch. 4 - In a useful application, the amplifier drives a...Ch. 4 - The op-amp in the amplifier in Fig. P4.19 operates...Ch. 4 - For the amplifier in Fig. P4.20, the maximum value...Ch. 4 - For the circuit in Fig. P4.21, (a) find Vo in...Ch. 4 - Find Vo in the circuit in Fig. P4.22, assuming...Ch. 4 - The network in Fig. P4.23 is a current-to-voltage...Ch. 4 - Prob. 24PCh. 4 - Determine the relationship between v1 and io in...Ch. 4 - Find Vo in the network in Fig. P4.26 and explain...Ch. 4 - Determine the expression for vo in the network in...Ch. 4 - Show that the output of the circuit in Fig. P4.28...Ch. 4 - Find vo in the network in Fig. P4.29.Ch. 4 - Find the voltage gain of the op-amp circuit shown...Ch. 4 - Determine the relationship between and in the...Ch. 4 - Prob. 32PCh. 4 - For the circuit in Fig. P4.33, find the value of...Ch. 4 - Find Vo in the circuit in Fig. P4.34.Ch. 4 - Find Vo in the circuit in Fig. P4.35.Ch. 4 - Determine the expression for the output voltage,...Ch. 4 - Determine the output voltage, of the noninverting...Ch. 4 - Find the input/output relationship for the current...Ch. 4 - Find V0 in the circuit in Fig. P4.39.Ch. 4 - Find Vo in the circuit in Fig. P4.40.Ch. 4 - Find the expression for in the differential...Ch. 4 - Find vo in the circuit in Fig. P4.42.Ch. 4 - Find the output voltage, vo, in the circuit in...Ch. 4 - The electronic ammeter in Example 4.7 has been...Ch. 4 - Given the summing amplifier shown in Fig. 4PFE-l,...Ch. 4 - Determine the output voltage V0 of the summing...Ch. 4 - What is the output voltage V0 in Fig. 4PFE-3. a....Ch. 4 - What value of Rf in the op-amp circuit of Fig....Ch. 4 - What is the voltage Vo in the circuit in Fig....
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- 2. b) (i) Derive an expression for the differentiator using op-amp. (ii) Design a circuit to perform differentiation of an input signal that varies in frequency from 20HZ to about 2 KHz. (iii) If a sine wave of 0.5 V peak at 2 KHz is applied to the differentiator of part (ii), draw the output waveform.arrow_forwardOperational Amplifier (Op-Amp) is a solid-state device with voltage amplification capabilities as shown in Figure Q1. (a) Name the function of Op-Amp U1, U2 and U3 in Figure Q1. (b) Derive the output voltage (Vol, Voz and Vo3) of each Op-Amp in Figure Q1. Based on derivation in Q1(b), calculate the output voltages (Vol, Vo2 and Vo3) of the circuit. All the Op-Amps are powered with + 12V voltage supplies. Given: Ra = Rb = 1 kN, Ry = Rx = 10 kN, Ra = 3.6 kN, Rr = 3 k2. The input voltages: V,= V = 5 V. (c) (d) Draw and label clearly the sinusoidal output of Vo1, Vo2 and Vo3.arrow_forwardDiscuss what a difference amp is, give equations and details, what is a single-ended and differential signal, what is a 4-20 mA signal, what is common-mode noise and why is a difference amp used?arrow_forward
- Consider the op-amp circuit to the right. Write a general formula for Vout as a function of Vin and the parameters of the resistor and MOSFET. Make sure to pay attention to the orientation of the MOSFET, you may assume an ideal op-amp. Vin R1 om + Q1 Voutarrow_forwardOperational amplifiers or Op-amps are essentially at the core of every analog device and perform varied functions and operations. Describe what an operational amplifier is and what its major applications are. Also describe what an ideal model for op amp is and some of the main assumptions made for an op amp to be modeled with an ideal model.arrow_forwardPlease answer asap..tq Electronic circuit analysis and designarrow_forward
- (c) (d) Figure Figure Q1b shows an Op-amp with a bias current compensating resistor (Rp). R₁ V₂. Vp IB. R₂ W A • V₂ Figure Olb (i) Derive an expression for V. to quantify the effect of bias currents IB+ and IB-. [3] (ii) Explain how you would choose a value for Rp to reduce the output error due to the bias currents, IB+ and IB.. [3] Referring to an op-amp define what is meant by common-mode rejection ratio (CMRR) and explain the effect a finite CMRR would have on high-precision applications. [4] Page 2 of 7 Continued overleafarrow_forwardDesign an op-amp circuit that can perform this operation: Vo = 2V1V2 – 3V3. Marking Scheme: 1. Circuit Diagram 2. Calculation with Assumptionsarrow_forward9. Suppose we design an inverting amplifier using 5% tolerance resistors and an ideal op-amp. The nominal amplifier gain is -20. Answer the following two questions: a. What are the minimum and maximum possible gains? b. What is the percent tolerance of the gain?arrow_forward
- 3I Calculate the the Output Voltage of a non-inverting op-amp with the following parameters Rf = 360KOhms, Vo = -9.3V, and Vi = -0.3V. a.31.2 kOhms b.32 kOhms c.12 kOhms d.31 kOHmsarrow_forwardGiven below op-amp circuit, assume ideal op-amp to solve the problem.arrow_forwardFor the op-amp shown in the following figure, the purpose of R1 and R2 is- R2 R1 Select one: O a. to set input impedance O b. to set input impedance and voltage gain O c for bias current compensation O d. for input offset voltage compensation.arrow_forward
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