Input signal - sine. Peak to peak value from 0.1V to 2V. The output signal is a square wave, the peak to peak value is always 5V, which does not depend on frequency and input level.
I mean, for example:
1. Signal in, sine, 0.1V p-p 120 MHz ----> Out = 5V p-p square 120 MHz
2. Signal in, sine, 2V p-p 20 MHz ----> Out = 5V p-p square 20 MHz