System and method for compensating for non-linear capacitance in a converter
By employing a structure of series transistors and compensating capacitors in the DAC, the nonlinear capacitance problem of the DAC at high signal frequencies is solved, improving signal quality and conversion efficiency, enhancing spurious-free dynamic range, and reducing third-order intermodulation distortion.
CN117749192BActive Publication Date: 2026-07-10AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE LTD
- Filing Date
- 2023-09-21
- Publication Date
- 2026-07-10
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Figure CN117749192B_ABST
Abstract
The present disclosure relates to systems and methods of compensating for nonlinear capacitance in a converter. Described herein are systems and methods related to a converter including a plurality of unit cells. The unit cells each include a first transistor and a second transistor. The first transistor is coupled in series with an output of the unit cell, and the second transistor is configured to have a capacitance characteristic that reduces a nonlinear capacitance characteristic of the first transistor. The converter can be a voltage or current mode digital-to-analog converter.
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