A circuit comprises a current source providing an input current, first and second transistors having common control terminals and forming a current mirror connected between first and second power supply potentials, with the first transistor having an input coupled to the current source, the current mirror...http://www.google.es/patents/US6492796?utm_source=gb-gplus-sharePatente US6492796 - Current mirror having improved power supply rejection
Current mirror having improved power supply rejection
