Patent ID: 6750702
Filing Date: 2004-06-15
Classification: H03F

Abstract:
A limiting amplifier comprising:(1) a differential amplifying stage comprising first and second input transistors having: (a) first and second input terminals coupled to a differential input voltage, (b) first and second high terminals respectively coupled to a high power supply through first and second load means, and (c) first and second low terminals respectively coupled to a low power supply through first and second current source means; and (2) a differential output stage comprising a third and fourth input transistors having: (a) third and fourth input terminals respectively connected to the first and second high terminals, (b) differential output terminals respectively connected to third and fourth current source means, and (c) high terminals connected to the high power supply; wherein said differential amplifying stage further comprises a first resistor means connected between said first and second low terminals; and said differential output stage further comprises a second resistor means connected between said differential output terminals.