Exam-style question
Try this first
What causes output saturation in a real op‑amp?.
- A.Supply voltage limits
- B.Infinite open‑loop gain
- C.Zero input bias current
- D.Unlimited bandwidth
Model answer
What a good answer should say
- Supply voltage limits
Explanation
Why this works
Rule: The output voltage of an op‑amp cannot exceed its supply rails. Substitution: V_out_max = V_supply.
Working: If V_supply = ±15 V, the output saturates near ±15 V. Answer: Supply voltage limits.
Units: V. Conclusion: Real op‑amps saturate when the output reaches the supply rails.
Common mistake
No common mistake is linked to this question yet.