Invention Grant
- Patent Title: Common-mode current removal schemes for digital-to-analog converters
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Application No.: US17811706Application Date: 2022-07-11
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Publication No.: US12081229B2Publication Date: 2024-09-03
- Inventor: Sumant Ramprasad , Nitz Saputra , Ashok Swaminathan
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Patterson & Sheridan LLP
- Main IPC: H03M1/08
- IPC: H03M1/08 ; H03M1/74 ; H03M1/78

Abstract:
Methods and apparatus for common-mode current removal in a digital-to-analog converter (DAC). An example DAC circuit generally includes a plurality of current-steering cells, a resistor ladder circuit coupled to the plurality of current-steering cells and having a plurality of shunt branches, and an adjustable resistance circuit coupled between middle nodes of the plurality of shunt branches and a reference potential node for the DAC circuit.
Public/Granted literature
- US20240014824A1 COMMON-MODE CURRENT REMOVAL SCHEMES FOR DIGITAL-TO-ANALOG CONVERTERS Public/Granted day:2024-01-11
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