How does the gain of an ideal operational amplifier vary with frequency?
It increases linearly with increasing frequency
It decreases linearly with increasing frequency
It decreases logarithmically with increasing frequency
It does not vary with frequency✓Правильный ответ
Объяснение
The ideal op-amp model assumes infinite gain at all frequencies, so by definition gain does not change with frequency. Real devices depart from this because internal compensation rolls the open-loop gain off above a low corner frequency.