For each op-amp circuit diagram: - Derive the equivalent transfer function between Vout and Vin - If a circuit contains more than 1 op-amp, assume each op-amp is a separate element/transfer function in a block diagram - and draw the equivalent block-diagram that represents the circuit consisting of blocks - Find the unit-step response for circuits in P1 and P4 given the following values: Problem 1: R1=R2=100kN, R3 = 100, L= 1 mH, C= 1 µ F Problem 4: R1=R2=R3=R5=10kN, R4=1kN, R6=1MN, R7 = 100k N, C = 10 µF %3D Hints: - Observe each op-amp separately and derive transfer functions between inputs/outputs of individual op-amps. - Be careful about identifying inverting/non-inverting configurations of op-amps .

For each op-amp circuit diagram: - Derive the equivalent transfer function between Vout and Vin - If a circuit contains more than 1 op-amp, assume each op-amp is a separate element/transfer function in a block diagram - and draw the equivalent block-diagram that represents the circuit consisting of blocks - Find the unit-step response for circuits in P1 and P4 given the following values: Problem 1: R1=R2=100kN, R3 = 100, L= 1 mH, C= 1 µ F Problem 4: R1=R2=R3=R5=10kN, R4=1kN, R6=1MN, R7 = 100k N, C = 10 µF %3D Hints: - Observe each op-amp separately and derive transfer functions between inputs/outputs of individual op-amps. - Be careful about identifying inverting/non-inverting configurations of op-amps .

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Part A What op amp circuit configuration is this? ANSWER: O A non-inverting summing amplifier. A difference amplifier circuit. An inverting summing amplifier. V₂ = Part C Part B Find an expression for the output voltage v, in terms of the input voltage va. Assume that va is in volts. Suppose Rf = 20 kn. Express your answer in terms of v₂. ANSWER: V 5 V Suppose V₁ = 2 V. What value of Rf will cause the op amp to saturate? Express your answer to three significant figures and include the appropriate units. ANSWER: R₁ = 5 kn m w 8 ΚΩ 2 ΚΩΣ L R₁ m 10 V -10 V 27 ΚΩΣ
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The voltage signals VA and VB from two sensors need to be conditioned to obtain an output voltage Vout= A(VA - VB), where A is an amplification terms that can be adjusted between 0 and 100 using a potentiometer. c) The obtained signal needs to be filtered to attenuate high frequency noise. Which of the following circuits using ideal op-amps is the most appropriate for this function and why? Input C R CIRCUIT 1 Output Input R CIRCUIT 2 Output Input m R R CIRCUIT 3 Output
do H.W For the integrator op-Amp the input voltage is 015. Cos 100t, find, the value of Capacitor required to give peak op voltage is -5V. [R=1K5] Ans: C=1MF; if you Assume
Q3) Based on Adder-Subtractor Circuits, Design using Op- Amp to give an output voltage V, =-5 V, - 3V, + 8 V +2 V,
OAP 2 ( (a) Design a circuit which provides a gain of -5 V/V for an input voltage source vs. You have an op-amp powered at VDD = +5 V and Vss = -5 V. Design your circuit such that 1 µA is drawn from the input vs when Vs = 200 mV. Include a drawing of the circuit and label all resistors that you use with their respective values. (b) What is the op-amp output voltage when vs = 200 mV? OAP 3 (a) Design a circuit that provides a gain of +10 V/V for an input signal vs. Use 100 kn as the smaller/smallest resistor value in your design. Include a drawing of the circuit and label all resistors that you use with their respective values. (b) Assume the op-amp is powered at VDD = +15 V and Vss = -15 V. At what positive and negative values of vs will the output vo be +/-15 V? (c) What will happen if the values of vs go beyond the values from (b)?
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Q\ Solve the following questions while giving the reason for each point 25. Each RC circuit in an op-amp (a) causes the gain to roll off at -6 dB/octave (b) causes the gain to roll off at-20 dB/decade (c) reduces the midrange gain by 3 dB (d) answers (a) and (b) 26. If a certain op-amp has a midrange open-loop gain of 200,000 and a unity-gain frequency of 5 MHz, the gain-bandwidth product is (a) 200,000 Hz (b) 5,000,000 Hz. (c) 1 x 1012 Hz (d) not determinable from the information 27. The bandwidth of an ac amplifier having a lower critical frequency of 1 kHz and an upper critical frequency of 10 kHz is (a) 1 kHz (b) 9 kHz (c) 10 kHz (d) 11 kHz 28. The bandwidth of a de amplifier having an upper critical frequency of 100 kHz is (a) 100 kHz (b) unknown (c) infinity (d) 0 kHz 29. When negative feedback is used, the gain-bandwidth product of an op-amp (a) increases (b) decreases (c) stays the same (d) fluctuates 30. If a certain op-amp has a closed-loop gain of 20 and an upper critical…
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a) Design a non-inverting amplifier using an ideal op amp that has a gain 7.5. b) If you wish to amplify signals between -2V and 1.2V using the circuit you designed in part (a) what are the smallest power supply voltages you can use? c) Draw your final circuit diagram. d) Assume that the voltage signal source is vs = -1V and the feedback resistor Rf is replaced with a variable resistor. Specify the range of Rf (in kN ) which will cause the op amp to saturate?
OAP 5 Design an op-amp circuit using a single op-amp that adds two input signals V₁1 and Vs2. That is, Vo = Vs1 + Vs2. Each input signal can vary between -5 V and +5 V: -5 V ≤ Vs1 ≤ +5 V and -5 V ≤ Vs2 ≤ +5 V. Choose resistor values such that the maximum current leaving or entering either voltage source (vs1 or Vs2) is 1 mA. (You can assume the power rails VDD and Vss are large enough to accommodate the most extreme outputs.)