Microelectronics: Circuit Analysis and Design
4th Edition
ISBN: 9780073380643
Author: Donald A. Neamen
Publisher: McGraw-Hill Companies, The
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Chapter 11, Problem 11.2TYU
a.
To determine
The value of Rcto redesign the circuit for given conditions.
b.
To determine
The value of differential mode voltage gain.
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QUESTION 12: The differential amplifier shown in Figure P11.60 has
a pair of pnp bipolars as input devices and a pair of npn bipolars
connected as an active load. The circuit is biased by Io=0.24 mA, and
the transistor parameters are ß = 80 , VẬP=90 V, and VAN = 115 V.
(a) Determine Io such that the de currents in the diff-amp are balanced.
(b) Find the open-circuit differential-mode voltage gain. (c) Determine
the differential-mode voltage gain if a load resistance R1 = 260 k2 is
connected to the output.
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QUESTION 10: The circuit parameters for diff-amp shown in Figure 11.30 are V* = 6 V, V = -6 V, and Io = 0.45 mA. The transistor parameters are ß = 74, V₁1
= V42 = 115 V₂ V 43 V 44 = 90 V, and V45 = ∞0.
Determine the open-circuit differential-mode voltage gain. What is the output resistance of the diff-amp? Find the value of load resistance R₁ that reduces the
differential-mode gain to 71 percent of the open-circuit value.
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Chapter 11 Solutions
Microelectronics: Circuit Analysis and Design
Ch. 11 - The circuit parameters for the differential...Ch. 11 - Consider the de transfer characteristics shown in...Ch. 11 - Prob. 11.1CSPCh. 11 - Consider the diff-amp described in Example 11.3 ....Ch. 11 - Prob. 11.4EPCh. 11 - Prob. 11.1TYUCh. 11 - Prob. 11.2TYUCh. 11 - Assume the differential-mode gain of a diff-amp is...Ch. 11 - Prob. 11.5EPCh. 11 - Consider the diff-amp shown in Figure 11.15 ....
Ch. 11 - Prob. 11.7EPCh. 11 - Prob. 11.4TYUCh. 11 - Prob. 11.5TYUCh. 11 - The parameters of the diff-amp shown in Figure...Ch. 11 - For the differential amplifier in Figure 11.20,...Ch. 11 - The parameters of the circuit shown in Figure...Ch. 11 - The circuit parameters of the diff-amp shown in...Ch. 11 - Consider the differential amplifier in Figure...Ch. 11 - The diff-amp in Figure 11.19 is biased at IQ=100A....Ch. 11 - Prob. 11.10TYUCh. 11 - The diff-amp circuit in Figure 11.30 is biased at...Ch. 11 - Prob. 11.11EPCh. 11 - Prob. 11.12EPCh. 11 - Prob. 11.11TYUCh. 11 - Prob. 11.12TYUCh. 11 - Redesign the circuit in Figure 11.30 using a...Ch. 11 - Prob. 11.14TYUCh. 11 - Prob. 11.15TYUCh. 11 - Prob. 11.16TYUCh. 11 - Prob. 11.17TYUCh. 11 - Consider the Darlington pair Q6 and Q7 in Figure...Ch. 11 - Prob. 11.14EPCh. 11 - Consider the Darlington pair and emitter-follower...Ch. 11 - Prob. 11.19TYUCh. 11 - Prob. 11.15EPCh. 11 - Consider the simple bipolar op-amp circuit in...Ch. 11 - Prob. 11.17EPCh. 11 - Define differential-mode and common-mode input...Ch. 11 - Prob. 2RQCh. 11 - From the dc transfer characteristics,...Ch. 11 - What is meant by matched transistors and why are...Ch. 11 - Prob. 5RQCh. 11 - Explain how a common-mode output signal is...Ch. 11 - Define the common-mode rejection ratio, CMRR. What...Ch. 11 - What design criteria will yield a large value of...Ch. 11 - Prob. 9RQCh. 11 - Define differential-mode and common-mode input...Ch. 11 - Sketch the de transfer characteristics of a MOSFET...Ch. 11 - Sketch and describe the advantages of a MOSFET...Ch. 11 - Prob. 13RQCh. 11 - Prob. 14RQCh. 11 - Describe the loading effects of connecting a...Ch. 11 - Prob. 16RQCh. 11 - Prob. 17RQCh. 11 - Prob. 18RQCh. 11 - (a) A differential-amplifier has a...Ch. 11 - Prob. 11.2PCh. 11 - Consider the differential amplifier shown in...Ch. 11 - Prob. 11.4PCh. 11 - Prob. D11.5PCh. 11 - The diff-amp in Figure 11.3 of the text has...Ch. 11 - The diff-amp configuration shown in Figure P11.7...Ch. 11 - Consider the circuit in Figure P11.8, with...Ch. 11 - The transistor parameters for the circuit in...Ch. 11 - Prob. 11.10PCh. 11 - Prob. 11.11PCh. 11 - The circuit and transistor parameters for the...Ch. 11 - Prob. 11.13PCh. 11 - Consider the differential amplifier shown in...Ch. 11 - Consider the circuit in Figure P11.15. The...Ch. 11 - Prob. 11.16PCh. 11 - Prob. 11.17PCh. 11 - For the diff-amp in Figure 11.2, determine the...Ch. 11 - Prob. 11.19PCh. 11 - Prob. D11.20PCh. 11 - Prob. 11.21PCh. 11 - The circuit parameters of the diff-amp shown in...Ch. 11 - Consider the circuit in Figure P11.23. Assume the...Ch. 11 - Prob. 11.24PCh. 11 - Consider the small-signal equivalent circuit of...Ch. 11 - Prob. D11.26PCh. 11 - Prob. 11.27PCh. 11 - A diff-amp is biased with a constant-current...Ch. 11 - The transistor parameters for the circuit shown in...Ch. 11 - Prob. D11.30PCh. 11 - For the differential amplifier in Figure P 11.31...Ch. 11 - Prob. 11.32PCh. 11 - Prob. 11.33PCh. 11 - Prob. 11.34PCh. 11 - Prob. 11.35PCh. 11 - Prob. 11.36PCh. 11 - Consider the normalized de transfer...Ch. 11 - Prob. 11.38PCh. 11 - Consider the circuit shown in Figure P 11.39 . The...Ch. 11 - Prob. 11.40PCh. 11 - Prob. 11.41PCh. 11 - Prob. 11.42PCh. 11 - Prob. 11.43PCh. 11 - Prob. D11.44PCh. 11 - Prob. D11.45PCh. 11 - Prob. 11.46PCh. 11 - Consider the circuit shown in Figure P 11.47 ....Ch. 11 - Prob. 11.48PCh. 11 - Prob. 11.49PCh. 11 - Prob. 11.50PCh. 11 - Consider the MOSFET diff-amp with the...Ch. 11 - Consider the bridge circuit and diff-amp described...Ch. 11 - Prob. D11.53PCh. 11 - Prob. 11.54PCh. 11 - Prob. 11.55PCh. 11 - Consider the JFET diff-amp shown in Figure P11.56....Ch. 11 - Prob. 11.57PCh. 11 - Prob. 11.58PCh. 11 - Prob. D11.59PCh. 11 - The differential amplifier shown in Figure P 11.60...Ch. 11 - Prob. 11.61PCh. 11 - Consider the diff-amp shown in Figure P 11.62 ....Ch. 11 - Prob. 11.63PCh. 11 - The differential amplifier in Figure P11.64 has a...Ch. 11 - Prob. 11.65PCh. 11 - Consider the diff-amp with active load in Figure...Ch. 11 - The diff-amp in Figure P 11.67 has a...Ch. 11 - Consider the diff-amp in Figure P11.68. The PMOS...Ch. 11 - Prob. 11.69PCh. 11 - Prob. 11.70PCh. 11 - Prob. D11.71PCh. 11 - Prob. D11.72PCh. 11 - An all-CMOS diff-amp, including the current source...Ch. 11 - Prob. D11.74PCh. 11 - Consider the fully cascoded diff-amp in Figure...Ch. 11 - Consider the diff-amp that was shown in Figure...Ch. 11 - Prob. 11.77PCh. 11 - Prob. 11.78PCh. 11 - Prob. 11.79PCh. 11 - Prob. 11.80PCh. 11 - Consider the BiCMOS diff-amp in Figure 11.44 ,...Ch. 11 - The BiCMOS circuit shown in Figure P11.82 is...Ch. 11 - Prob. 11.83PCh. 11 - Prob. 11.84PCh. 11 - For the circuit shown in Figure P11.85, determine...Ch. 11 - The output stage in the circuit shown in Figure P...Ch. 11 - Prob. 11.87PCh. 11 - Consider the circuit in Figure P11.88. The bias...Ch. 11 - Prob. 11.89PCh. 11 - Consider the multistage bipolar circuit in Figure...Ch. 11 - Prob. D11.91PCh. 11 - Prob. 11.92PCh. 11 - For the transistors in the circuit in Figure...Ch. 11 - Prob. 11.94PCh. 11 - Prob. 11.95PCh. 11 - Prob. 11.96PCh. 11 - Consider the diff-amp in Figure 11.55 . The...Ch. 11 - The transistor parameters for the circuit in...
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- QUESTION 2: The differential amplifier in Figure P11.4 is biased with a three-transistor current source. The transistor parameters: B = 85 , VBE(on) = 0.7 V, and V= 0. Determine a new value of R1 such that VCE4 = 1.3 V. What are the values of Ic4, Ic2, and I4? Ic4 (mA) Format : 4.2 Ic2 (mA) Format : 8.382 I (mA) Format : 5.576 R1 (kN) Format : 5.969 +5 V 8.5 k2 2 k2 2 kQ Q4 VCE4 Qs Q3 Q2 VCE2 -5 V Figure P11.4 wwarrow_forwardHelparrow_forwardThe Input resistance (Ri) of a given Transistor is______________arrow_forward
- A. Detemine the value of the collector resistor in an npn transistor amplifier with Bpc = 250, VBB = 2.5 V, Vcc = 9 V, VCE = 4 V, and Rg = 100 k2. B. Detemine Ic(sat) for the transistor in below Figure. What is the value of Is necessary to produce saturation? What minimum value of VIN is necessary for saturation? Assume VCE(sat) = 0 V. %3D +5 V 10 kN Rg VINO BDC = 150 1.0 MNarrow_forwardQ.5/ Refer to the class AB amplifier in figure below operating with a single power supply:a. Find the dc parameters VB(Q1), VB(Q2), VE, ICQ, VCEQ(Q1), VCEQ(Q2).b. Assuming the input voltage is 10Vpp, calculate the power delivered to the load resistor.c. What faults causing the following troubles:1. A positive half-wave output signal2. 0V on both bases and emitters3. No output: emitter voltage =15V4. Crossover distortion on the output.arrow_forward"Below is a small signal equivalent circuit model considering the early effect of the BJT. Find the input resistance, output resistance, and voltage gain." Rout Rc R gm Ube R.R re ± Vi RE Voarrow_forward
- Only a)arrow_forwardFigure 1(a) shows a series fed class A amplifier circuit. In order to achieve the maximum efficiency, the Q point must be located at the center of the DC load line as shown in Figure 1(b). This generates the maximum output current swing of Icmax (p – p) RC and the maximum output voltage swing is VCEmax(p – p) = Vcc Assume that the maximum input de power is (1 Vcc Pimax(dc) = Vcc!cQ(max)=Vcc \2° Rc. 2Rc Find the maximum efficiency, 7 of this circuit.arrow_forwardBJT as Transistorarrow_forward
- For the op-amp shown, all transistors have B= 100, VBE = 0.7 V, and VA= 60 V. The %3D output resistance of all CCSS =0 and RL=1.2 kQ. A) Calculate the total gain. B) Calculate the maximum efficiency of the output stage for sinusoidal inputs. C) Redesign the circuit with a class AB output stage and calculate the maximum efficiency for the same load and CCSS? * +5 V 0. 2mA 1mA Ix V1a1 a2 v2 Q6 05 Vo Q3 2mA RL -5 Varrow_forwardExercise 1:-arrow_forwardDerive the operating point ,Q-pt., of the BJT voltage-feedback bias circuit shown.arrow_forward
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Differential Amplifiers Made Easy; Author: The AudioPhool;https://www.youtube.com/watch?v=Mcxpn2HMgtU;License: Standard Youtube License