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1.
公开(公告)号:US20240178807A1
公开(公告)日:2024-05-30
申请号:US18070215
申请日:2022-11-28
Applicant: Texas Instruments Incorporated
Inventor: Ankit Khanna , Dimitar Trifonov , Partha S. Basu , Chase Puglisi
CPC classification number: H03F3/45475 , H03F1/086 , H03F2200/261 , H03F2200/462 , H03F2203/45134
Abstract: An example apparatus includes: a transconductance stage including: a fully differential amplifier configured to generate a differential current based on a voltage input; and a transistor configured to be controlled by an output of the fully differential amplifier and source current from an input of the fully differential amplifier; and a transimpedance stage coupled to the transconductance stage, the transimpedance stage including: resistor circuitry configured to convert the differential current into a differential voltage using a first resistance, a second resistance, and a third resistance; and a differential amplifier configured to convert the differential voltage to a single-ended voltage, which represents the voltage input.
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公开(公告)号:US20240146265A1
公开(公告)日:2024-05-02
申请号:US17977840
申请日:2022-10-31
Applicant: Texas Instruments Incorporated
Inventor: Ankit Khanna , Dimitar Trifonov , Partha S. Basu , Sudheer Gangula
IPC: H03F3/45
CPC classification number: H03F3/45475 , H03F2203/45594
Abstract: An example apparatus includes: a differential amplifier including: an inverting input coupled to a first input via a first resistor; a non-inverting input coupled to a second input via a second resistor; a first supply input coupled to the first input via a third resistor, and the first supply input coupled to the second input via a fourth resistor; a second supply input coupled to a current source; a non-inverting output; and an inverting output; a first transistor including a first control terminal and a first current terminal, the first control terminal coupled to the non-inverting output and the first current terminal coupled to the inverting input; and a second transistor including a second control terminal and a second current terminal, the second control terminal coupled to the inverting output and the second current terminal coupled to the non-inverting input.
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