A particular op amp using ±15-V supplies operates linearly for outputs in the range-14 V to+14 V. If used in an inverting amplifier configuration of gain - 100, what is the rms value of the largest possible sine wave that can be applied at the input without output clipping?

V (rms) = 98.99 mV ≅ 100 mV

Explanation:

Outputs = - 14 to + 14

Gain = = 100

We know that Gain = Output/Input

so, to find out the input voltage:

Input = Output/Gain

= ±14/-100

Input = 0.14 V

This is the peak input voltage (Vpk) of the sine wave and the question is asking us to find the rms value.

To calculate the rms value:

V (rms) = V (pk) / √2

= 0.14/√2

= 0.09899

= 98.99 mV

V (rms) ≅ 100 mV