Question

Rise time of an amplifier is defined as time required
1. To change from 0 to 100% of its final value
2. To change from 0 to 50% of its final value
3. To change from 10 to 90% of its final value
4. To change from 10 to 100% of its final value

Answer 1

Correct Answer - Option 3 : To change from 10 to 90% of its final value

Rise time (tr): It is specified as the transition time for an input signal to rise from 0.1 to 0.9 times of signal's max output value.

Bandwidth(B.W.): It is defined as the range of frequencies over which the majority of the signal passes.

tr × B.W. = 0.35