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A Technique for Correcting Systematic Offset of Static/Quasi-Static Current Mirrors

IP.com Disclosure Number: IPCOM000032608D
Publication Date: 2004-Nov-09

Publishing Venue

The IP.com Prior Art Database

Abstract

A technique and apparatus for correcting systematic offset between a mirror voltage and an output voltage in a current mirror is disclosed. A correction loop incorporates an operational amplifier coupled to the output and mirror voltage of the current mirror. The operational amplifier feeds back to regulate a supply voltage of the current mirror, which forces the mirror voltage of the operational amplifier toward that of the output voltage.