Invention Grant
- Patent Title: Amplifier offset cancellation using amplifier supply voltage
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Application No.: US16348824Application Date: 2018-04-27
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Publication No.: US10797651B2Publication Date: 2020-10-06
- Inventor: Graeme Gordon Mackay , Lei Zhu , Ku He , Vamsikrishna Parupalli
- Applicant: Cirrus Logic International Semiconductor Ltd. , Graeme Gordon Mackay
- Applicant Address: US TX Austin
- Assignee: Cirrus Logic, Inc.
- Current Assignee: Cirrus Logic, Inc.
- Current Assignee Address: US TX Austin
- Agency: Jackson Walker L.L.P.
- International Application: PCT/US2018/029752 WO 20180427
- International Announcement: WO2018/200934 WO 20181101
- Main IPC: H03F1/02
- IPC: H03F1/02 ; H03F3/45 ; H03F3/187 ; H03F3/213 ; H03F1/30
Abstract:
In accordance with embodiments of the present disclosure, a method for power supply rejection for an amplifier may include generating a correction signal by multiplying a quantity indicative of a power supply voltage of the amplifier by a transfer function defining a response from the power supply voltage of the amplifier to an output signal of the amplifier and subtracting the correction signal from a signal within a signal path of a circuit comprising the amplifier.
Public/Granted literature
- US20200059200A1 AMPLIFIER OFFSET CANCELLATION USING AMPLIFIER SUPPLY VOLTAGE Public/Granted day:2020-02-20
Information query
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