Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Chapter 18, Problem 10ST
To determine
The correct answer for the feedback attenuation from the given options.
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Negative feedback added to an op-amp it
decreases the bandwidth and decreases the gain.
Select one:
O True
O False
An op-amp has an open-loop gain of 105 and an open-loop upper cutoff frequency of 10 Hz. If this op-
amp is connected as an amplifier with a closed-loop gain of 100, then the new upper cutoff frequency is
Q6 Calculate the output voltage of a
non- inverting op-amp if the
feedback resistance Rf is 7.5KQ, input
resistance R1 is 2.5KQ and the input
*.signal is 100 mV
Vin
oVout
0.6 V O
1 V
0.8 V
0.4 V O
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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- Negative feedback added to an op-amp increases the bandwidth and increases the gain. Select one: O True O Falsearrow_forward8. Determine the closed-loop gain and bandwidth. The op-amps in each circuit exhibit an open-loop gain of 125 dB and a unity-gain bandwidth of 2.8 MHz: Vin (a) Vino- (c) + + OV 4 out o Vout Rf 12 ΚΩ Ri 1.0 ΚΩ Vino 2.2 ΚΩ (b) Vino R₁ (d) R₁ 5.6 ΚΩ Rf www 100 ΚΩ 2.2 ΚΩ Rf www 1.0 ΜΩ + OV out OV outarrow_forwardFor a given op amp, CMRR = differential gain = 108. What is the common mode gain of Op-Amp. A B C 1 10 100 107 and D 0.1arrow_forward
- 5. The open-loop gain of a certain op-amp is 175,000. Its common-mode gain is 0.18. Determine the CMRR in decibels. 6. An op-amp datasheet specifies a CMRR of 300,000 and an A, of 90,000. What is the common-mode gain?arrow_forwardQ) What is the type of negative feedback in the given circuit * Vcc Rc Rs REarrow_forwardProblem C It is desired to have a gain of 20 for frequencies up to 180 kHz. Determine the minimum unity gain frequency specification for the op amp. The gain should be within at least 98% Vsig Rin + Rf Vcc/-Vcc +12v/ -12V Voutarrow_forward
- The type of the feedback in this circuit is: VDD M5 M6 X Vino M3 Select one: MAH Iss Laser WI a. shunt-series feedback lout O b. shunt shunt O c. series-series feedback O d. series-shunt feedback RMarrow_forwardI have the following circuit, please help me to identify the feedback topology of the circuit usechatgpt init successarrow_forwardAn op-amp has a maximum output voltage swing between ± 14 V. The feedback resistors are R1 = 1.5 KQ, R2 = 7.3 k2, and R3 = 7.6 k0. The input voltage (Vin) is Vin = 0.2 V. What is the output voltage (Vout) to within 1% accuracy? o + Vin Vout= M r₁ ww + HI r3 V 0 + Vout Report questiarrow_forward
- The characteristic of an op-amp that tells how fast the output voltage changes is called O gain bandwidth product O slew rate O noise margin O propagation delayarrow_forwardIt is the average of the two de currents that flows into the inverting and non- inverting inputs of an op-amp. O Input Bias Current O Input Offset Current O Quiescent Operating Current Feedback Currentarrow_forwardWrite a formula for Vout Input (Vin) +ve Op-amp R1 R2 Out 77770V (b) Non-inverting dc amplifierarrow_forward
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Current feedback amplifiers - Overview and compensation techniques; Author: Texas Instruments;https://www.youtube.com/watch?v=2WZotqHiaq8;License: Standard Youtube License