Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
Comparison
B
Amplification
C
Oscillation
D
Filtering
Understanding the Answer
Let's break down why this is correct
Answer
An op‑amp is mainly used to amplify a small voltage into a larger one, so its key function is amplification. A comparator, on the other hand, takes two input voltages and decides which is higher, then drives its output high or low accordingly. Thus the counterpart to amplification in this analogy is comparison, producing a binary decision rather than a scaled voltage. For example, if a comparator receives +2 V on its non‑inverting input and +1 V on its inverting input, its output will go high, indicating that the first input is larger.
Detailed Explanation
A comparator watches two input voltages and produces a high or low output depending on which input is larger. Other options are incorrect because Amplification is a property of many devices, but a comparator’s goal is not to grow the signal; Oscillation means a signal keeps swinging back and forth, but a comparator settles into a high or low level.
Key Concepts
Operational Amplifiers
Comparators
Signal Processing
Topic
Operational Amplifiers Basics
Difficulty
easy level question
Cognitive Level
understand
Practice Similar Questions
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1
Question 1Which of the following statements about operational amplifiers are true? Select all that apply.
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Question 2Which statement best describes the function of an operational amplifier?
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Question 3Which of the following statements accurately describe the internal components and function of operational amplifiers (op-amps)? Select all that apply.
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Question 4Which of the following statements about operational amplifiers are true? Select all that apply.
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Question 7Which of the following statements about operational amplifiers are true? Select all that apply.
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Question 8Operational Amplifier : Amplification :: Comparator : ?
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