What is the configuration/principle of limiting amplifier?

[symsnowfairy]

Excuse me, is there anyone who knows the configuration or principle of limiting amplifier? I did not find them on web. Could anyone give me some suggestion?

Thanks in advance!

 

[flyingsky]

Limiting Amplifier

hi
maybe it will help you !

Pins 4 and 5 are the HI and LO inputs, respectively. Both inputs are biased internally to 1.725V.The limiter output is a pair of differential currents of magnitude, IOUT, from high impedance (open-collector) sources. These are converted to equal-amplitude voltages by supply-referenced load resistors, RLOAD. The limiter output current is set by RLIM, the resistor connected between Pin 9 (LMDR) and ground. The limiter output current is set according the equation: IOUT= - 400 mV/RLIM.