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Electronic Devices & CircuitsOperational Amplifiers

An ideal op-amp comparator with no feedback receives V+ = 0.2 V and V- = 0.1 V. Its output tends toward?

  • AThe positive saturation level
  • BThe negative saturation level
  • CExactly zero in all cases
  • DA sinusoid at the input frequency
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Correct Answer: A. The positive saturation level
Explanation: Because V+ exceeds V-, the large open-loop gain drives the output toward the positive saturation rail.
Reference: Standard analog electronics: op-amp comparator
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