Low-voltage differential amplifier
AssigneeInternational Business Machines Corporation
InventorsJohn Atkinson Fifield, Steven Harley Lamphier
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Abstract
A low-voltage differential amplifier circuit is disclosed. The low-voltage differential amplifier circuit includes a first differential amplifier, a second differential amplifier and a summing circuit. The first differential amplifier receives a pair of differential input signals to generate a first output. The second differential amplifier receives the same pair of differential input signals to generate a second output. The summing circuit sums the first output of the first differential amplifier and the second output of the second differential amplifier to provide a common output.
Claims15
A differential amplifier circuit comprising:
- a first differential amplifier for receiving a pair of differential input signals to generate a first output;
- a second differential amplifier for receiving said pair of differential input signals to generate a second output;
- a summing circuit for summing said first output of said first differential amplifier and said second output of said second differential amplifier to provide a common output for said differential amplifier circuit;
- and
- a reference voltage generation circuit for providing a reference voltage signal to said summing circuit, wherein said reference voltage generation circuit is a differential amplifier.
Dependencies are inferred from the claim text.