Microelectronic Circuits (The Oxford Series in Electrical and Computer Engineering) 7th edition
7th Edition
ISBN: 9780199339136
Author: Adel S. Sedra, Kenneth C. Smith
Publisher: Oxford University Press
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Chapter 2, Problem 2.115P
To determine
The value of the
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A differential amplifier connected in the circuitas shown has the parameters listed below withRI = 5 kohm and RL = 600ohm . (a) Find the overallvoltage gain Av, current gain Ai , and power gainAP for the amplifier, and express the results in dB.(b) What is the amplitude VI of the sinusoidal inputsignal needed to develop a 20-V peak-to-peaksignal at vo?Input resistance Rid = 1 M Output resistance Ro = 25 A = 60 dBvi = VI sin ωt
The circuit shown can be used as a variable capacitor, where CM can be tuned by changing the resistor RTUNE. All op-amps are ideal.
a) Use the Miller theorem to find the expression for CM
b) Find the required value for RTUNE so that CM=100 nF
A amplifier’s closed-loop voltage gain Av is described by Eq. as shown. What is the minimum value of loop gain T required if the gain error is to be less than 0.2 percent for an ideal gain of 50 dB?
Chapter 2 Solutions
Microelectronic Circuits (The Oxford Series in Electrical and Computer Engineering) 7th edition
Ch. 2.1 - Prob. 2.1ECh. 2.1 - Prob. 2.2ECh. 2.1 - Prob. 2.3ECh. 2.2 - Prob. D2.4ECh. 2.2 - Prob. 2.5ECh. 2.2 - Prob. 2.6ECh. 2.2 - Prob. D2.7ECh. 2.2 - Prob. D2.8ECh. 2.3 - Prob. 2.9ECh. 2.3 - Prob. 2.10E
Ch. 2.3 - Prob. D2.11ECh. 2.3 - Prob. 2.12ECh. 2.3 - Prob. 2.13ECh. 2.3 - Prob. 2.14ECh. 2.4 - Prob. 2.15ECh. 2.4 - Prob. D2.16ECh. 2.4 - Prob. 2.17ECh. 2.5 - Prob. 2.18ECh. 2.5 - Prob. D2.19ECh. 2.5 - Prob. D2.20ECh. 2.6 - Prob. 2.21ECh. 2.6 - Prob. 2.22ECh. 2.6 - Prob. 2.23ECh. 2.6 - Prob. 2.24ECh. 2.6 - Prob. 2.25ECh. 2.7 - Prob. 2.26ECh. 2.7 - Prob. 2.27ECh. 2.7 - Prob. 2.28ECh. 2.8 - Prob. 2.29ECh. 2.8 - Prob. 2.30ECh. 2 - Prob. 2.1PCh. 2 - Prob. 2.2PCh. 2 - Prob. 2.3PCh. 2 - Prob. 2.4PCh. 2 - Prob. 2.5PCh. 2 - Prob. 2.6PCh. 2 - Prob. 2.7PCh. 2 - Prob. 2.8PCh. 2 - Prob. 2.9PCh. 2 - Prob. 2.10PCh. 2 - Prob. 2.11PCh. 2 - Prob. D2.12PCh. 2 - Prob. D2.13PCh. 2 - Prob. D2.14PCh. 2 - Prob. 2.15PCh. 2 - Prob. 2.16PCh. 2 - Prob. 2.17PCh. 2 - Prob. 2.18PCh. 2 - Prob. 2.19PCh. 2 - Prob. D2.20PCh. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - Prob. 2.23PCh. 2 - Prob. 2.24PCh. 2 - Prob. 2.25PCh. 2 - Prob. D2.26PCh. 2 - Prob. 2.27PCh. 2 - Prob. 2.28PCh. 2 - Prob. D2.29PCh. 2 - Prob. 2.30PCh. 2 - Prob. 2.31PCh. 2 - Prob. 2.32PCh. 2 - Prob. D2.33PCh. 2 - Prob. D2.34PCh. 2 - Prob. D2.35PCh. 2 - Prob. 2.36PCh. 2 - Prob. D2.37PCh. 2 - Prob. D2.38PCh. 2 - Prob. D2.39PCh. 2 - Prob. D2.40PCh. 2 - Prob. D2.41PCh. 2 - Prob. D2.42PCh. 2 - Prob. 2.43PCh. 2 - Prob. D2.44PCh. 2 - Prob. D2.45PCh. 2 - Prob. D2.46PCh. 2 - Prob. D2.47PCh. 2 - Prob. D2.48PCh. 2 - Prob. 2.49PCh. 2 - Prob. 2.50PCh. 2 - Prob. D2.51PCh. 2 - Prob. D2.52PCh. 2 - Prob. 2.53PCh. 2 - Prob. 2.54PCh. 2 - Prob. 2.55PCh. 2 - Prob. D2.56PCh. 2 - Prob. 2.57PCh. 2 - Prob. 2.58PCh. 2 - Prob. 2.59PCh. 2 - Prob. 2.60PCh. 2 - Prob. D2.61PCh. 2 - Prob. 2.62PCh. 2 - Prob. 2.63PCh. 2 - Prob. 2.64PCh. 2 - Prob. 2.65PCh. 2 - Prob. 2.66PCh. 2 - Prob. D2.67PCh. 2 - Prob. 2.68PCh. 2 - Prob. D2.69PCh. 2 - Prob. 2.70PCh. 2 - Prob. D2.71PCh. 2 - Prob. 2.72PCh. 2 - Prob. 2.73PCh. 2 - Prob. 2.74PCh. 2 - Prob. 2.75PCh. 2 - Prob. D2.76PCh. 2 - Prob. 2.77PCh. 2 - Prob. 2.78PCh. 2 - Prob. 2.79PCh. 2 - Prob. D2.80PCh. 2 - Prob. 2.81PCh. 2 - Prob. D2.82PCh. 2 - Prob. D2.83PCh. 2 - Prob. 2.84PCh. 2 - Prob. 2.85PCh. 2 - Prob. D2.86PCh. 2 - Prob. 2.87PCh. 2 - Prob. 2.88PCh. 2 - Prob. 2.89PCh. 2 - Prob. 2.90PCh. 2 - Prob. 2.91PCh. 2 - Prob. D2.92PCh. 2 - Prob. D2.93PCh. 2 - Prob. 2.94PCh. 2 - Prob. 2.95PCh. 2 - Prob. 2.96PCh. 2 - Prob. 2.97PCh. 2 - Prob. 2.98PCh. 2 - Prob. D2.99PCh. 2 - Prob. D2.100PCh. 2 - Prob. 2.101PCh. 2 - Prob. 2.102PCh. 2 - Prob. 2.103PCh. 2 - Prob. 2.104PCh. 2 - Prob. 2.105PCh. 2 - Prob. 2.106PCh. 2 - Prob. 2.107PCh. 2 - Prob. 2.108PCh. 2 - Prob. 2.109PCh. 2 - Prob. 2.110PCh. 2 - Prob. 2.111PCh. 2 - Prob. 2.112PCh. 2 - Prob. 2.113PCh. 2 - Prob. 2.114PCh. 2 - Prob. 2.115PCh. 2 - Prob. D2.116PCh. 2 - Prob. D2.117PCh. 2 - Prob. D2.118PCh. 2 - Prob. 2.119PCh. 2 - Prob. 2.120PCh. 2 - Prob. 2.121PCh. 2 - Prob. 2.122PCh. 2 - Prob. 2.123PCh. 2 - Prob. 2.124PCh. 2 - Prob. 2.125PCh. 2 - Prob. 2.126PCh. 2 - Prob. D2.127P
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- Find the approximate location of fZ for the op amp as shown using the values from the previous exercise. What value of RZ is needed to eliminate fZ?arrow_forwardFrom these data in Table, compute the gains Ad and Acm and verify that they are as designed. (Q2) From these calculations, what is the CMRR of this amplifier? (Q3) Is your differential amplifier working well?arrow_forwardA sinusoidal signal with a peak amplitude of 10 V and frequency 1 Hz is applied to the comparator circuits shown in Fig. A2b(a) and Fig. A2b(b). For both the circuits, the op-amp is powered by a ±VCC of ±10V with the corresponding saturation voltages ±Vsat of ±9 V, while for the circuit in Fig. A2(b), the values of R1 and R2 are 10 kΩ and 25 kΩ, respectively. Assuming that the signal frequency is well below the slew rate limit, describe and draw separately what would be the comparator output (Vo) for circuits shown in Figs. A2(a) and A2(b).arrow_forward
- 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.arrow_forwardTwo signal sources have internal voltages v1(t) and v2(t) respectively. The internal (i.e., Thévenin) resistances of the sources are known always to be less than 2 kΩ but the exact values are not known and are likely to change over time. Using the components listed in TableP13.36 , design an amplifier for which the output voltage is vo(t)=A1v1(t)+A2v2(t). The gains are to be A1=−10±1 percent and A2=3±1 percent.arrow_forwardTo overcome the false output transitions of simple comparators, Schmitt trigger circuits utilising positive feedback are utilised. For such as circuit, shown in Fig.Q.A2c, derive what would be the values of the upper threshold point (UTP or Vt + ), lower threshold point (LTP or Vt - ) as a function of the voltage divider circuit and the saturation values (+Vsat, -Vsat) associated with the op-amp. Please provide a clear rationale for the steps in derivation of the relationship. A Schmitt trigger circuit is required to have saturation values ±12 V, and a switching thresholds of ±3 V. For the Schmitt trigger circuit shown in Figure Q.A2c, determine the values of Rx and Ry such that the above-mentioned conditions are fulfilled. Also, sketch the input-output characteristic of such an inverting Schmitt-trigger. Clearly label axes, the threshold voltages and the saturation voltages in your sketch.arrow_forward
- Consider the circuit shown in FigureP13.24 . a. Find an expression for the output voltage in terms of the source current and resistance values. b. What value is the output impedance of this circuit? c. What value is the input impedance of this circuit? d.This circuit can be classified as an ideal amplifier. What is the amplifier type? (See Section11.6 for a discussion of various ideal-amplifier types.) Repeat ProblemP13.24 for the circuit shown in FigureP13.25 .arrow_forwardYour Boss asks you to get more knowledge about operational amplifiers by studying specific operational amplifiers of your choice both FET and BJT based technology (make sure datasheets are available with your final report): A) From the datasheet, find the number of pins of the Op-amp IC, the open-loop gain, bandwidth, CMRR, slew rate, Voltage offset, current offset, input and output impedance, recommended supply voltages. Tabulate your outcomes with evidence from the data sheets. For both types of Op-Amps. Discus advantages and disadvantages of both.arrow_forwardFind an expression for the closed-loop gain G = v0/vS. Then, assume that R1 = 1kΩ, R2 = 4kΩ, C = 1uF.arrow_forward
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