Patent · US Active

Common-mode current removal schemes for digital-to-analog converters

US12081229B2 · kind B2 · utility

0Cited by

3References

26Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Sumant Ramprasad · Cupertino, US
Nitz Saputra · San Bruno, US
Ashok Swaminathan · Irvine, US

Key dates

Filing date	Jul 11, 2022
Grant date	Sep 3, 2024
Priority date	—
Expiry date	Dec 14, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH03M1/785
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.