Microelectronics: Circuit Analysis and Design
4th Edition
ISBN: 9780073380643
Author: Donald A. Neamen
Publisher: McGraw-Hill Companies, The
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Textbook Question
Chapter 13, Problem 13.27P
An op−amp that is internally compensated by Miller compensation has aunity−gain bandwidth of 10 MHz and a low−frequency gain of
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4. A DC amplifier has a single-pole response with a pole frequency of fpp 100Hz a low-
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0
Find the closed-loop low-frequency gain and bandwidth.
=
Find the value of Rf that will produce the indicated closed-loop gain in the
amplifier circuit. Assume the feedback attenuation is 0.001.
www.www
R₁
R₁
Vout
12
12 ΚΩ
An ideal series-shunt feedback amplifier has Rs negligibly small. If Vi= 100mV, Vfb =
99mV, and Vo= 5V determine:
a. Av, B, Avf (including the units)
b. Rif, Rof if Ri= 5 Kohm & Ro = 4 Kohm.
Chapter 13 Solutions
Microelectronics: Circuit Analysis and Design
Ch. 13 - Prob. 13.1EPCh. 13 - Prob. 13.2EPCh. 13 - Prob. 13.4EPCh. 13 - Repeat Example 13.5 assuming Early voltages of...Ch. 13 - Prob. 13.6EPCh. 13 - Prob. 13.3TYUCh. 13 - Prob. 13.4TYUCh. 13 - Prob. 13.5TYUCh. 13 - Prob. 13.6TYUCh. 13 - Prob. 13.8EP
Ch. 13 - Prob. 13.11EPCh. 13 - Prob. 13.10TYUCh. 13 - Prob. 13.12TYUCh. 13 - Prob. 13.12EPCh. 13 - Prob. 13.13EPCh. 13 - Prob. 13.15EPCh. 13 - Prob. 13.15TYUCh. 13 - Consider the LF155 BiFET input stage in Figure...Ch. 13 - Describe the principal stages of a generalpurpose...Ch. 13 - Prob. 2RQCh. 13 - Prob. 3RQCh. 13 - Describe the operation and characteristics of a...Ch. 13 - Describe the configuration and operation of the...Ch. 13 - What is the purpose of the resistorin the active...Ch. 13 - Prob. 7RQCh. 13 - Prob. 8RQCh. 13 - Describe the frequency compensation technique in...Ch. 13 - Sketch and describe the general characteristics of...Ch. 13 - Prob. 11RQCh. 13 - Sketch and describe the principal advantage of a...Ch. 13 - Prob. 13RQCh. 13 - What are the principal factors limiting the...Ch. 13 - Consider the simple MOS opamp circuit shown in...Ch. 13 - Prob. 13.2PCh. 13 - Prob. 13.5PCh. 13 - Consider the input stage of the 741 opamp in...Ch. 13 - Prob. 13.7PCh. 13 - Prob. 13.8PCh. 13 - Prob. 13.10PCh. 13 - The minimum recommended supply voltages for the...Ch. 13 - Prob. 13.12PCh. 13 - Consider the 741 opamp in Figure 13.3, biased with...Ch. 13 - Prob. 13.14PCh. 13 - Consider the output stage of the 741 opamp shown...Ch. 13 - Prob. 13.16PCh. 13 - Prob. 13.19PCh. 13 - Prob. 13.20PCh. 13 - Prob. 13.21PCh. 13 - Prob. 13.22PCh. 13 - Prob. 13.23PCh. 13 - Prob. 13.24PCh. 13 - (a) Determine the differential input resistance of...Ch. 13 - An opamp that is internally compensated by Miller...Ch. 13 - The CMOS opamp in Figure 13.14 is biased at V+=5V...Ch. 13 - Prob. 13.34PCh. 13 - Consider the MC14573 opamp in Figure 13.14, with...Ch. 13 - Prob. 13.36PCh. 13 - Prob. 13.37PCh. 13 - Prob. 13.39PCh. 13 - Prob. 13.41PCh. 13 - In the bias portion of the CA1340 opamp in Figure...Ch. 13 - Prob. 13.57PCh. 13 - In the LF155 BiFET opamp in Figure 13.25, the...
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- the fystlen A A unity feedback Susten has a forrard traf trandsfer functin of 10Es+20)(5t 30) 52(5+25)(5+35)CH50) is as state the fystem ype. step, Cu) fuid the stahi emr Coustants for Stepe, raup and farabolic inputs.arrow_forward3. Prove that Rg SB(Rc + Rp) is the required condition for an optimum design of the voltage-feedback circuit.arrow_forwardconsider a sinusoid input with a peak amplitude of 2 mV. If the amplification gain A1 = 500 and k-0.125, the error (E) and the amplitude of the output waveform Vout of the feedback network are: R2 (a) Select one: O a. none of these O b. E=0.031m and Vout= 15.75mV O c. E= 127m and Vout= 15.75 O d. E=127m and Vout= 1Varrow_forward
- A closed-loop amplifier is to have a 75° phase margin for B 1. What is the required unity-gain frequency f, if feq = Woq/(2n) = 50MHZ? What is the required fia?arrow_forwardGiven the feedback circuit below and assuming the voltage amplifier has gain A₂, input resistance R₁ and output resistance Ro, answer the following questions: + a. Loop gain b. Closed loop gain Re C. Input resistance d. Output resistance Rin м + RE A) Sketch the feedback small signal model of this circuit. (Hint: You may convert the input VIN and source resistance Rs to its Norton current equivalent if needed) B) Find the following in terms of the amplifier parameters and resistances R, and RF: Routarrow_forward4) For the given the amplifier circuit shown below has the following parameters: Rid = 20ks, ro = 10092, gain = μ = 107, R₁ = 1kQ2, R₁ = 2012, R₂ = 40kS2 and R3 = 2012. a) State the type of feedback topology circuit. b) Identify the feedback portion of the circuit. c) Determine R11 and R22. d) Find Bf. e) Draw the small AC equivalent circuit of the below amplifier. f) Determine Af. g) Determine Rif and Rof. VS Rin R1 R2 www I。 Rout RL R3 www Warrow_forward
- b) If B =-0.015 and A =-5×10“, determine the closed-loop gain Ar.arrow_forwardQ) In the negative feedback the low frequency and the high frequency with the feedback are: Note: flf = Low frequency with feedback and fhf = High Frequency with feedback * (a) flf= fl /(1+AB) and fhf= fh /(1+AB) O (b) fhf= fh /(1+AB) and flf= fl (1+AB) O (c) flf= fl (1+AB) and fhf= fh (1+AB) O (d) fhf= fh (1+AB) and flf= fl /(1+AB)arrow_forward2) The amplifier circuit shown below has the following parameters: Rid = 200k, ro = 2k2, an open loop gain = μ = 106. If the factor 1+Aßf) = 15. a) State the type of feedback topology circuit. b) Identify the feedback portion of the circuit. c) Determine R₁1 and R22. d) Draw the small AC equivalent circuit of the below amplifier. e) Determine Aƒ. f) Determine Rif and Rof. Is S RS www +1₁ 100 R1 •MW". 3k OPAMP R2 ww 1k R3 R4 www 4k 3k Voarrow_forward
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