Offset compensation device for an input stage.

摘要

The present invention relates to an offset compensation device for an input stage (10) with two current-output branches, a first (D+) of which is connected to the input of a true stage (12) which diverts a stray current (I0) from this first branch. The device comprises a false stage (34) which diverts a compensation current (I0/K) of value K (K>1) times less than the value of the stray current, this compensation current being amplified by an amplifier (36) with gain K before being diverted from the second output branch (D-) of the input stage. <IMAGE>