Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
August 31, 2010
Patent Application Number
12404391
Date Filed
March 16, 2009
Patent Primary Examiner
Patent abstract
An amplifier circuit is disclosed that includes a first input terminal; a second input terminal; a first differential amplifier circuit that samples signals input to the first and second input terminals and outputs signals obtained by applying a gain to the sampled input signals having different voltages; and a second differential amplifier circuit that supplies first and second reference voltages referred to when a sampling operation is performed in the first differential amplifier circuit to the first and second input terminals, respectively. A potential difference between the first and second reference voltages is equal to an offset voltage of the first differential amplifier circuit.
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