Which statement best describes the impact of open-loop configuration on the output without feedback?

Which statement best describes the impact of open-loop configuration on the output without feedback?

• A. It provides perfect linear amplification
• B. It makes the gain small
• C. It causes the output to saturate due to very high gain
• D. It eliminates distortion

Answer: (C)

Without feedback, an op-amp operates with very high open-loop gain, so even the tiniest difference between the inputs is amplified to extremes. In the real world this tiny difference comes from input offsets, bias currents, and noise. Because the output can only swing between the supply rails, that large amplified signal pushes the output to one rail or the other, causing clipping and severe distortion. In short, open-loop amplification does not give linear, controlled amplification; it drives the output to saturation due to the very high gain.

Without feedback, an op-amp operates with very high open-loop gain, so even the tiniest difference between the inputs is amplified to extremes. In the real world this tiny difference comes from input offsets, bias currents, and noise. Because the output can only swing between the supply rails, that large amplified signal pushes the output to one rail or the other, causing clipping and severe distortion. In short, open-loop amplification does not give linear, controlled amplification; it drives the output to saturation due to the very high gain.