Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
Inverting amplifier
B
Non-inverting amplifier
C
Voltage follower
D
Comparator
Understanding the Answer
Let's break down why this is correct
Answer
The best choice is a non‑inverting amplifier that uses a resistor pair for the feedback network. This configuration keeps the input impedance high, so the signal source is hardly loaded, while the feedback keeps the gain exactly equal to the resistor ratio, giving a stable, repeatable gain. Because the op‑amp’s open‑loop gain is divided by the feedback factor, the closed‑loop bandwidth is increased and the slew‑rate limitation is lessened, which keeps distortion low. For example, using 10 kΩ for the feedback resistor and 1 kΩ for the resistor to ground gives a clean 10× gain with minimal phase shift and a wide bandwidth. This setup is widely used for audio and precision sensor amplifiers.
Detailed Explanation
The non‑inverting amplifier gives a fixed gain that does not depend on the input signal level. Other options are incorrect because The inverting amplifier has a lower input impedance, so it can load the source and shift the phase; A voltage follower provides unity gain; it does not amplify signals.
Key Concepts
Op-Amp Gain
Circuit Configuration
Feedback Mechanism
Topic
Op-Amp Gain and Practical Considerations
Difficulty
medium level question
Cognitive Level
understand
Practice Similar Questions
Test your understanding with related questions
1
Question 1You are designing a simple audio amplifier using an operational amplifier. You want to ensure that the amplifier outputs a clean sound without distortion. If the non-inverting input receives a signal that is 2V higher than the inverting input, what will be the output of the op-amp if it has a gain of 100?
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2
Question 2Arrange the steps for designing a practical op-amp circuit using negative feedback to achieve a desired gain.
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3
Question 3You are designing an audio amplifier circuit using an operational amplifier. You want to ensure that the output signal remains stable and does not distort at high input levels. Given that op-amps have high but finite gain, which design consideration is most critical for maintaining output stability in your circuit?
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4
Question 4How do the internal transistor configurations in op-amps affect their gain and stability?
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5
Question 5You are designing a simple audio amplifier using an operational amplifier. You want to ensure that the amplifier outputs a clean sound without distortion. If the non-inverting input receives a signal that is 2V higher than the inverting input, what will be the output of the op-amp if it has a gain of 100?
easyEngineering
Practice
6
Question 6You are designing a simple audio amplifier using an operational amplifier. You want to ensure that the amplifier outputs a clean sound without distortion. If the non-inverting input receives a signal that is 2V higher than the inverting input, what will be the output of the op-amp if it has a gain of 100?
easyEngineering
Practice
7
Question 7Arrange the steps for designing a practical op-amp circuit using negative feedback to achieve a desired gain.
mediumEngineering
Practice
8
Question 8You are designing an audio amplifier circuit using an operational amplifier. You want to ensure that the output signal remains stable and does not distort at high input levels. Given that op-amps have high but finite gain, which design consideration is most critical for maintaining output stability in your circuit?
hardEngineering
Practice
9
Question 9How do the internal transistor configurations in op-amps affect their gain and stability?
hardEngineering
Practice
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