Invention Grant
- Patent Title: Gate leakage compensation in a current mirror
- Patent Title (中): 电流镜中的门漏电补偿
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Application No.: US13246319Application Date: 2011-09-27
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Publication No.: US08441381B2Publication Date: 2013-05-14
- Inventor: Ovidiu Bajdechi , Tom W. Kwan
- Applicant: Ovidiu Bajdechi , Tom W. Kwan
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: H03M1/00
- IPC: H03M1/00

Abstract:
A method and apparatus is disclosed to compensate for gate leakage currents of thin oxide devices that have very thin oxide layers in a current mirror of a digital-to-analog converter (DAC). The DAC converts a digital input signal from a digital representation in a digital signaling domain to an analog representation in an analog signaling domain to provide an analog output signal. The DAC uses one or more transistors to convert the digital input signal from the digital representation to the analog representation. These transistors are typically implemented using thin oxide devices that have very thin oxide layers and corresponding gate leakage currents that are associated with these very thin oxide layers. The current-steering DAC provides these gate leakage currents independent of its corresponding reference source without any substantial affect upon its full scale output.
Public/Granted literature
- US20130076549A1 GATE LEAKAGE COMPENSATION IN A CURRENT MIRROR Public/Granted day:2013-03-28
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