Invention Grant
- Patent Title: Differential amplifier stage with integrated offset cancellation circuit
- Patent Title (中): 具有积分偏移消除电路的差分放大器级
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Application No.: US12826831Application Date: 2010-06-30
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Publication No.: US08482352B2Publication Date: 2013-07-09
- Inventor: Fuad E. Doany , Alexander V. Rylyakov , Clint L. Schow
- Applicant: Fuad E. Doany , Alexander V. Rylyakov , Clint L. Schow
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Tutunjian & Bitetto, P.C.
- Agent Anne V. Dougherty
- Main IPC: H03F3/45
- IPC: H03F3/45
Abstract:
A differential amplifier stage and method for offset cancellation include an amplifier having an input and an output. An internal offset cancellation circuit has an input for receiving a control signal to control offset cancellation in the amplifier. The offset cancellation circuit is integrated with the amplifier but isolated from the input and the output of the amplifier, and, in accordance with its isolation, an impedance of the stage is unaffected by the offset cancellation circuit.
Public/Granted literature
- US20120001697A1 DIFFERENTIAL AMPLIFIER STAGE WITH INTEGRATED OFFSET CANCELLATION CIRCUIT Public/Granted day:2012-01-05
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