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US 7,265,624 B2Granted
Amplifier circuit
AssigneeSony Corporation
InventorsKatsuhisa Daio, Tomoyuki Hiro
Life of this patent
Estimating the term…
Abstract
The present invention provides an amplifier circuit comprising a differential amplifier and a negative feedback loop circuit, in which a positive feedback loop circuit having a gain smaller than a gain of the negative feedback loop circuit is formed inside the negative feedback loop circuit.
Claims2
An amplifier circuit comprising a differential amplifier and an offset voltage canceling negative feedback loop circuit, wherein:
- a positive feedback loop circuit having a gain smaller than a gain of said negative feedback loop circuit is formed inside the negative feedback loop circuit;
- and
- the gain of said positive feedback loop circuit is determined using part of the resistors for determining the gain of the negative feedback loop circuit.
Dependencies are inferred from the claim text.