Invention Grant
- Patent Title: Apparatus and method for miller compensation for multi-stage amplifier
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Application No.: US13007321Application Date: 2011-01-14
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Publication No.: US08174321B1Publication Date: 2012-05-08
- Inventor: Evgueni Ivanov , Arthur Kalb
- Applicant: Evgueni Ivanov , Arthur Kalb
- 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: H03F1/14
- IPC: H03F1/14

Abstract:
An amplifier circuit includes a first amplifier stage having a first output node; a second amplifier stage having a second output node; and a compensation block electrically coupled between the first and second output nodes. The compensation block has a compensation capacitor electrically coupled to the first node and electrically connectable to the second node, and has an impedance electrically connectable to the compensation capacitor. The compensation capacitor is electrically coupled via a switch to the impedance such that the compensation capacitor can contribute a zero to shunt branch formed by the compensation capacitor and impedance when the compensation capacitor is disconnected from the second node.
Public/Granted literature
- US08395448B2 Apparatus and method for miller compensation for multi-stage amplifier Public/Granted day:2013-03-12
Information query
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