Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 24, 2007
Patent Application Number
11367792
Date Filed
March 3, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
In an analog-to-digital (A-D) converter, an A-D conversion circuit samples an analog signal and converts it to a digital value of a predetermined bit number less than a targeted bit number. An amplifier circuit is provided in parallel to the A-D conversion circuit, and holds the signal sampled by the A-D conversion circuit or amplifies it by a predetermined gain. A first source follower circuit for the amplifier circuit and a second source follower circuit for the A-D conversion circuit are provided separately at the output side of a sample-and-hold circuit.
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