Invention Grant
- Patent Title: Delay-tracking biasing for voltage-to-time conversion
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Application No.: US17696734Application Date: 2022-03-16
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Publication No.: US11716089B1Publication Date: 2023-08-01
- Inventor: Bob W. Verbruggen , Christophe Erdmann
- Applicant: XILINX, INC.
- Applicant Address: US CA San Jose
- Assignee: XILINX, INC.
- Current Assignee: XILINX, INC.
- Current Assignee Address: US CA San Jose
- Agency: Patterson + Sheridan, LLP
- Main IPC: H03M1/06
- IPC: H03M1/06

Abstract:
A biasing scheme for a voltage-to-time converter (VTC). An example biasing circuit generally includes a reference current source; a feedback loop current source; an amplifier having a first input coupled to a target voltage node, having a second input, and having an output coupled to a control input of the reference current source and to a control input of the feedback loop current source; a first capacitive element; a first switch coupled in parallel with the first capacitive element; a second switch coupled between the feedback loop current source and the first capacitive element; and a third switch coupled between the first capacitive element and the second input of the amplifier.
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