Invention Grant
- Patent Title: Amplifier circuit, chip and electronic device
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Application No.: US17110097Application Date: 2020-12-02
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Publication No.: US11575357B2Publication Date: 2023-02-07
- Inventor: Wen-Chi Wang
- Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
- Applicant Address: CN Guangdong
- Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
- Current Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
- Current Assignee Address: CN Guangdong
- Agency: WPAT, P.C., Intellectual Property Attorneys
- Agent Anthony King
- Main IPC: H03F3/45
- IPC: H03F3/45

Abstract:
The present application discloses an amplifier circuit, a chip and an electronic device, which generates a positive output signal and a negative output signal according to a positive input signal and a negative input signal, wherein the positive input signal and the negative input signal have a corresponding input differential-mode voltage and input common-mode voltage, and the positive output signal and the negative output signal have a corresponding output differential-mode voltage and output common-mode voltage, and the amplifier circuit includes: an amplifying unit, configured to receive the positive input signal and the negative input signal and generate the positive output signal and the negative output signal; and an attenuation unit, including: a positive common-mode capacitor and a negative common-mode capacitor, configured to attenuate the input common-mode voltage below a first specific frequency.
Public/Granted literature
- US20210091735A1 AMPLIFIER CIRCUIT, CHIP AND ELECTRONIC DEVICE Public/Granted day:2021-03-25
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