AMPLIFIER CIRCUITS WITH INCREASED LINEARITY AND METHOD FOR INCREASING LINEARITY IN AMPLIFIER CIRCUITS

摘要

The present invention relates to an amplifier circuit (300, 400, 500, 600) for amplifying a current. An amplifier circuit for receiving an input signal (300, 400, 500, 600) and the input stage; Comprises at least one of a current multiplier stage coupled to said input stage, said current multiplier stage is a current signal (I _signal ) receiving said amplifier circuit (300, 400 from the input stage, 500, the output current signal multiplier to the output of 600) (I _{out and is to provide a} ), the current multiplier stage comprises at least two current multiplier circuit is connected to each other, these current multiplier circuit respectively, is the output current at the output of the input essentially equivalent output and the current signal from the stage current signal (I _signal ) it is adapted to generate the amplifier circuit (300, 400, 500, 600) signal (I _out ) is the sum of a current signal received at each of the current multiplier circuit. The method for increasing the linearity of the amplifier circuit is also proposed. ;