R4 R3 OA1 Vo R2 R1 + Vin RL VL Write node-voltage equations: one for each input terminal of the op amp. The expression for the load current (i,) can be written as a function of the input voltage (Vin) and the load voltage (v;) iz = Avin + Bv, 1. What is the expression for A? 2. What should be the condition for R, R2, R3, and R, so that B is zero? (NB: this condition will make i, depend only on vm and not on R.) +

R4 R3 OA1 Vo R2 R1 + Vin RL VL Write node-voltage equations: one for each input terminal of the op amp. The expression for the load current (i,) can be written as a function of the input voltage (Vin) and the load voltage (v;) iz = Avin + Bv, 1. What is the expression for A? 2. What should be the condition for R, R2, R3, and R, so that B is zero? (NB: this condition will make i, depend only on vm and not on R.) +

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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Similar questions

1. Find the Thévenin equivalent circuit with respect to the output terminals a, b for the inverting amplifier shown. The dc signal source has a value of 880 mV. The op amp has an input resistance of 500 kΩ, an output resistance of 2 kΩ, and an openloop gain of 100,000. 2. What is the output resistance of the inverting amplifier? 3. What is the resistance (in ohms) seen by the signal source vs when the load at the terminals a, b is 330 Ω?
An almost ideal op amp has an open-circuit outputvoltage vo = 10 V and a gain A = 106 dB. What isthe input voltage vid? How large must the voltagegain be to make vid ≤ 1 V?
Please show that gain = -(1-n)/(1+nA) , n = R1/(R1+R2) and compare to gain of ideal op amp. Calculate the input and output impedances, and lastly whats the point of the resistor R1//R2 on the non-inverting input? What would be the best value for this resistor? (pretending it wasn't given that the value is R1/R2).
For the op-amp circuit shown below, find the value of vO, where R1 = 19 Ω, R2 = 14 Ω, R3 = 18 Ω, R4 = 14 Ω, Rf = 11 Ω, VS1 = 15 V, and VS2 = 3 V.
The open-loop gain A of real (nonideal) op-amps isvery large at low frequencies but decreases markedlyas frequency increases. As a result, the closed-loopgain of op-amp circuits can be strongly dependent on frequency. Determine the relationship between a finiteand frequency-dependent open-loop gain AV(OL)(ω)and the closed-loop gain AV(CL)(ω) of an invertingamplifier as a function of frequency. Plot AV(CL)versus ω. Notice that −RF/RS is the low-frequencyclosed-loop gain.
Based on the simulation’s results, explain the function of a differential amplifier. (Hints: comment on the shape of Vo1 and Vo2, explain what would happen if V1 and V2 were the same, reflect on why it is important that an ideal op-amp has infinite input impedance).
Find Vout and CMMR of the Op Amp (Show Solution!!) Suppose R1 and R3 are nominally 1-kΩ 1% tolerance resistors and R2 and R4 are nominally 100-kΩ 1%resistors. For this exercise, assume the following exact values for these components, which are well withintheir tolerance ranges: R1 = 995 Ω, R2 = 100.8 kΩ, R3 = 1003 Ω, and R4 = 99.7 kΩ.
An amplifier is formed by cascading the three operational amplifier stages as shown. What are the voltage gain, input resistance, and outputresistance for this amplifier (a) if the op amps are ideal? (b) If the op amps have an open-loop gain of 94 dB, an input resistance of 400 kΩ, and an output resistance of 250 Ω?
For the circuit shown, determine the range (i.e., maximum and minimum values) of V1 such that the op-amp operates in the linear region. Assume that R1 = 9.4 kΩ , R2 = 1.6 kΩ , R3 = 4.0 kΩ, RF = 200 kΩ, V2 = 40 mV, V3 = 100 m, and Vcc = 5 V.
With the given circuit, you are tasked to do the ff: a. Write the node-voltage equations (where there must be one for eac input terminal of the op amp) b. The load current can be expressed as iL = AVin + BVL b.1 What is the expression for A? b.2 What should be the condition of resistors R1, R2, R3, & R4, so that B is zero? (which means this condition will allow iL depend only on Vin and not on RL)
Consider the following op amp configuration.(a) Choose R2 such that the ideal voltage gain is Av = 40dB and draw the amplifier’stransfer characteristic.(b) Find the amplifier’s input and output resistances.(c) If the op amp’s internal gain is Ao = 120dB, what is the expected voltage gain ofthe entire network?
For the circuit given, a) Find VO in terms of V1 and V2. b) If V1=2V and V2=6V, find VO. c) If the op-amp supplies are ±12V, and V1=4V, what is the allowable range of V2?