A system and a method are disclosed for providing a constant swing
high-gain complementary differential limiting amplifier. High gain for
the differential amplifier is created by providing a current to the
driving transistors that is a combination of any of (a) constant current,
(b) transconductance based current, and (c) temperature compensated based
current. A constant differential output swing is created by providing a
varying differential current to the output load resistors of the
differential amplifier that tracks process and temperature variations
within the output load resistors.