Self calibrating digital-to-analog converter
US11356111B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2021 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Mar 11, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A self-calibrating digital-to-analog converter (DAC) is disclosed. The self-calibrating DAC includes an input port, a non-binary DAC, an ADC to receive an output of the non-binary DAC, a lookup table to store a plurality of calibration code and a calibration logic coupled with the non-binary DAC. The self-calibrating DAC has two modes of operations, a calibration mode and a normal operational mode. In the calibration mode, the self-calibrating DAC is configured to calculate weightages of the non-binary DAC and to calculate an offset coefficient and a gain coefficients using high precision on chip analog-to-digital converter (ADC).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.