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 2ST
In selecting an op-amp. suppose you have several choices. Of the CMRR values listed, the most desirable is
- 10dB
- 20dB
- 50 dB
- 100 dB
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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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- Assume we have an ideal op amp find the vo/vin and Rin and Rout My answer Voltage gain = -10 Rin = infinity Rout = zero Is it rightarrow_forward3S Which of the followinh statements are true about an op-amp? a.op-amps have very high input impedance b.all of the statements c.op-amps have very low output impedance d.op-amps are very high gain DC amplifiersarrow_forwardFind the range of the output voltage for an inverting op - amp if the implication factor is 0.85 and the input voltage range from ( 1-6 ) V.arrow_forward
- For the given op-amp circuit, determine: iin/Is, Vout/iin, and Vout/Is.arrow_forwardstate if it is zero or infinite An ideal op amp has output impedance that is: An ideal op amp has differential gain that is:arrow_forwardIdentify the connection and application of each op-amp: A1, A2, A3 and A4arrow_forward
- draw the block diagram of op-Amparrow_forwardFor the differential amplifier in Figure 6, find Ad, Ac and CMRR (in dB) where lo = 0.587 mA and Ro (current source) = 170 KQ. Suppose K = 1mA/v²arrow_forwardThe midrange open-loop gain, "Aol(mid)" of a certain op-amp is 80,000. If the open-loop critical frequency is 1 kHz, what is the open-loop gain, "Aol" at each of the following frequencies? (a)100 Hz (b) 1 MHzarrow_forward
- Find the output voltage vO in the following figure if the op-amp is ideal and VZ = 12 V. Find the values of the emitter current and the total current supplied by the 15-V source. Assume βF = 62. Find the op-amp output voltage. Given that R1 = 53 kΩ and R2 = 104 kΩ.arrow_forwardA certain op-amp has two internal amplifier stages with the following gains and critical frequencies; Av1 = 50 dB, Av2 = 25 dB, fc1 = 1500 Hz, and fc2 = 3000 Hz. Determine the open loop midrange gain in decibels and total phase lag when f = fc1....arrow_forwardGiven a range of values for vs and v0, how are these calculated for v0 and how is the range for vs made to avoid op-amp saturation if it is -2 V < vs < 3 V? vs(v) 0.4 2.0 3.5 -0.6 -1.6 -2.4 vo(v) -2 -10 -15 3 8 10arrow_forward
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