Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 17, 2009
Patent Application Number
11812378
Date Filed
June 18, 2007
Patent Primary Examiner
Patent abstract
A fully-differential amplifier able to operate at a low power supply voltage and provided with a common-mode signal suppression function is disclosed. This fully-differential amplifier is provided with a first fully-differential amplifier configured by a single-stage configuration inverting amplifier and canceling out the common-mode signal of the input side by a feedforward means and a second fully-differential amplifier configured by a single-stage configuration inverting amplifier and canceling out the common-mode signal of the output side by a feedback means, the output of the first fully-differential amplifier being connected to the input of the second fully-differential amplifier.
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