Patent ID: 7250819
Filing Date: 2007-07-31
Classification: G05F,H03F

Abstract:
1. An input tracking current mirror for a differential amplifier system comprising: a current mirror having an input leg and an output leg; a differential amplifier including a first set of at least two transconductance components each having at least one input terminal for receiving input signals, said first set of at least two transconductance components having a first common node connected to said output leg having a first voltage that is a function of said input signals; and a tracking circuit including a second set of at least two transconductance components each having at least one input terminal for receiving said input signals, said second set of at least two transconductance components having a second common node connected to said input leg having a second voltage that is a function of said input signals, said tracking circuit driving said second voltage on said input leg to track said first voltage on said output leg with variations in said input signals.