Amplifier common-mode control methods

摘要: Systems and methods for providing a fully differential amplifier performing common-mode voltage control having reduced area power requirements are disclosed. The disclosed comprises an additional input stage at the which senses common mode of amplifier's inputs applies internal feedback to adjust output until matches target thereby indirectly set voltage. Furthermore can be implemented in such manner as provide feed-forward transconductance function addition if desired. Moreover it is possible use from other stages chain implement feedback.