Back to results
US 2015/0092510 A1Published application
Method and Apparatus for Amplifier Offset Calibration
AssigneeCavium, Inc.
InventorsOmer O. Yildirim, David Lin, Scott E. Meninger
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeCavium, Inc.
InventorsOmer O. Yildirim, David Lin, Scott E. Meninger
Estimating the term…
According to at least one example embodiment, a method and corresponding system for calibrating an amplifier offset include applying an input value to both input leads of an amplifier. The amplifier includes one or more digital-to-analog converters (DACs) used to calibrate an offset of the amplifier. A digital value, provided as input to the DAC, is updated over a number of iterations, by a control logic coupled to the amplifier, based on an output of the amplifier. A final value of the digital value being updated, e.g., associated with the last iteration, is employed as input to the DAC of the one or more DACs in the amplifier for calibrating the offset of the amplifier during a data reception phase.
A method of calibrating an amplifier offset, the method comprising:
The method as recited in claim 7, wherein determining the DAC associated with the digital value includes determining the DAC based on the output of the amplifier and a coupling of the DAC to a gain circuit in the amplifier.
A system for calibrating an amplifier offset comprising:
Dependencies are inferred from the claim text.