Invention Grant
- Patent Title: Method for low power low noise input bias current compensation
- Patent Title (中): 低功耗低噪声输入偏置电流补偿方法
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Application No.: US13897619Application Date: 2013-05-20
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Publication No.: US08970301B2Publication Date: 2015-03-03
- Inventor: Rayal Johnson , Moshe Gerstenhaber
- Applicant: Analog Devices, Inc.
- Applicant Address: US MA Norwood
- Assignee: Analog Devices, Inc.
- Current Assignee: Analog Devices, Inc.
- Current Assignee Address: US MA Norwood
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: H03F3/45
- IPC: H03F3/45
Abstract:
Low power low noise input bias current compensation for an amplifier input stage is provided by recycling the tail current of the differential pair transistors. A local amplifier regulates the tail current and buffers the base current of the tail current transistor, which is mirrored back to the input transistors to provide input bias current compensation.
Public/Granted literature
- US20140340149A1 METHOD FOR LOW POWER LOW NOISE INPUT BIAS CURRENT COMPENSATION Public/Granted day:2014-11-20
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