Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Textbook Question
Chapter 18, Problem 20P
Find the gain of each in amplifier in Figure 18-43.
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For a 2 stage amplifier system, the voltage gain of the first stage is 100 and of the second stage is 200. What will be total voltage gain of the system in decibels.
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summing amplifier
Chapter 18 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 18 - When a diff-amp has identical signals on both...Ch. 18 - A high CMRR for a diff-amp means the common-mode...Ch. 18 - Prob. 3TFQCh. 18 - The open-loop voltage gain of an op-amp is also...Ch. 18 - Prob. 5TFQCh. 18 - Prob. 6TFQCh. 18 - In a voltage-follower, the open-loop and...Ch. 18 - Prob. 8TFQCh. 18 - Prob. 9TFQCh. 18 - If the feedback resistor in an amplifier is open,...
Ch. 18 - Which characteristic docs not necessarily apply to...Ch. 18 - In selecting an op-amp. suppose you have several...Ch. 18 - Prob. 3STCh. 18 - Prob. 4STCh. 18 - Prob. 5STCh. 18 - Prob. 6STCh. 18 - Prob. 7STCh. 18 - Prob. 8STCh. 18 - If you know an op-amp's open-loop gain and nothing...Ch. 18 - Prob. 10STCh. 18 - Prob. 11STCh. 18 - The highest possible input resistance is achieved...Ch. 18 - Compare a practical op-amp to an ideal op-amp.Ch. 18 - Two IC op-amps are available to you. Their...Ch. 18 - Identify the type of input and output...Ch. 18 - Prob. 4PCh. 18 - A certain diff-amp has a differential gain of 60...Ch. 18 - A certain diff-amp has a CMRR of 65 dB. If the...Ch. 18 - Identify the type of input mode for each op-amp in...Ch. 18 - Show the common-mode input in Figure 18-37 in an...Ch. 18 - Determine the bias current, IBIAS, given that the...Ch. 18 - Distinguish between input bias current and input...Ch. 18 - A certain op-amp has a CMRR of 250,000. Convert...Ch. 18 - The open-loop gain of a certain op-amp is 175,000....Ch. 18 - The op-amp data sheet specifies a CMRR of 300,000...Ch. 18 - Figure 18-38 shows the output voltage of an op-amp...Ch. 18 - How long does it take the output voltage of an...Ch. 18 - Identify each of the op-amp configurations in...Ch. 18 - For the amplifier in Figure 18-40. determine the...Ch. 18 - Determine the closed-loop gain of each amplifier...Ch. 18 - Find the value of Rf that will produce the...Ch. 18 - Find the gain of each in amplifier in Figure...Ch. 18 - If a signal voltage of 10 mV applied to each...Ch. 18 - Determine the approximate values for each of the...Ch. 18 - Determine the input and output resistances for...Ch. 18 - Repeat Problem 23 for each circuit in Figure...Ch. 18 - Repeat Problem 23 for each circuit in Figure...Ch. 18 - Prob. 26PCh. 18 - Prob. 28PCh. 18 - Prob. 29PCh. 18 - Prob. 30PCh. 18 - Prob. 31PCh. 18 - Prob. 32P
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- If the voltage gain of the amplifier section of a certain oscillator is equal to 100, what is the required attenuation of the feedback?A. 1B. 0.1C. 50D. 0.99arrow_forwardAn amplifier has an open loop gain of the value equal to 1. Determine the gain when 0.5 % of negative feedback is introduced.arrow_forwardCalculate the gain of the negative feedback amplifier having A=-1050 and Beta=-0.82.arrow_forward
- A differential amplifier has an open-loop voltage gain of 150 when the input signals are 3.55V and 3.50 V. Determine the output voltage of the amplifier. a. 0.0225 kV b. 0.25 kVc.1 kV d. 1.25 kVarrow_forwardFill in the blanks in the following sentences: 6. The output waveform of Class B push-pull amplifier contains------ ------ distortionarrow_forwardGive reasons for the following:(i) The gain of the Opamp rolls off after a certain frequency is reached.(ii) The Output offset voltage generated by the input bias current is always greater than that generated by the input offset current.arrow_forward
- analyze the output voltage of non inverting amplifier if input voltage is 40 volt input resistance is 50 ohm and feedback is 150 ohm a=170v b=185v c=160v d=140varrow_forwardDetermine the voltage gain plz λ is not 0 ..arrow_forwardCalculate the input impedance for voltage series feedback when the amplifier has Ri = 11 kΩ, the amplifier gain is A = -1,766, and β = -0.020. Zif=____ kohmsarrow_forward
- Figure shows an improved series voltage regulator with current limit circuit protection 1. Calculate the approximate output current when the circuit triggers the short circuit protection. 2. Calculate the output voltage for the circuit.arrow_forwardDifference in inverting and non inverting amplifier.arrow_forwardSample and Hold circuit is not required before the analogue to digital converter. A) True B) Falsearrow_forward
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