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 16P
Identify each of the op-amp configurations in Figure 18-39.
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1. Create a circuit diagram on PHASE SHIFT KEYING
2. Create a circuit diagram on BINARY SHIFT KEYING
For the Block Diagram shown in Figure 6, explain the function of the following:
A. Integrator
B. Comparator
C. Control Logic
Give 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.
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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- Definf open loop gain of the op-amp in-short.arrow_forwardAn amplifier has an open loop gain of the value equal to your roll no. Determine the gain when 0.75 % of negative feedback is introduced.arrow_forwardState whether the following statement is true or false. “The feedback loop in an LDO regulates the output voltage by changing the current through the pass element.” Please Answer with few line explanationarrow_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_forwardRouth Hurwitzof closed loop system with variable gain.arrow_forwardOne advantage of having feedback in op amp circuit is A.Can control gain B.less complicated C.less input signal D.low gain E.high output voltage F.low bandwidtharrow_forward
- Answer the following questionsWhat is the difference between an OP-AMP 741 and an LM386 What is the difference between an open loop circuit and a closed loop circuit? Explain with 3 examples what is range and what is precision.arrow_forwardThe open loop transfer function of a feedback control system is G(s)H(s)=1/(s+1)2 what is the gain margin.arrow_forwardDesign a non inverting Schmitt trigger circuit with VT to be adjustable from = 5 V to 10 V.arrow_forward
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