Invention Grant
- Patent Title: Method and apparatus for amplifier offset calibration
- Patent Title (中): 放大器偏移校准的方法和装置
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Application No.: US14040563Application Date: 2013-09-27
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Publication No.: US09087567B2Publication Date: 2015-07-21
- Inventor: Omer O. Yildirim , David Lin , Scott E. Meninger
- Applicant: Cavium, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cavium, Inc.
- Current Assignee: Cavium, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Hamilton, Brook, Smith & Reynolds, P.C.
- Main IPC: G11C8/08
- IPC: G11C8/08 ; G11C7/06 ; G11C8/18 ; G11C8/06 ; H03F3/45

Abstract:
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.
Public/Granted literature
- US20150092510A1 Method and Apparatus for Amplifier Offset Calibration Public/Granted day:2015-04-02
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