Invention Grant
- Patent Title: Switched capacitor equalizer with offset voltage cancelling
- Patent Title (中): 开关电容均衡器,具有失调电压消除
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Application No.: US11396393Application Date: 2006-03-31
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Publication No.: US07656226B2Publication Date: 2010-02-02
- Inventor: Luke A Johnson , Yueming He
- Applicant: Luke A Johnson , Yueming He
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Schwegman, Lundberg & Woessner, P.A.
- Main IPC: H03F1/02
- IPC: H03F1/02

Abstract:
An embodiment may be described as a switched capacitor analog equalizer circuit with offset voltage cancellation, where an embodiment comprises an amplifier in which a feedback path from its output port to one of its input ports is provided during a reset phase, and where the amplifier's input port connected to the feedback path is also connected to one terminal of an offset-correction capacitor and one terminal of a sampling capacitor. The other terminal of the offset-correction capacitor is connected to a switch and the other terminal of the sampling capacitor is connected to an input port to receive a signal. During the reset phase, the switch is open, and during a sampling phase, the switch is closed so that the offset-correction capacitor and the sampling capacitor are connected in parallel. Other embodiments are described and claimed.
Public/Granted literature
- US20070229046A1 Switched capacitor equalizer with offset voltage cancelling Public/Granted day:2007-10-04
Information query
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