Digital-to-analog converter
US7068201B1 · kind B1 · utility
25Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2005 |
| Grant date | Jun 27, 2006 |
| Priority date | — |
| Expiry date | Apr 19, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/747
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital-to-analog converter (DAC) is disclosed, which provides different bias voltages to the most significant bits (MSBs) and the least significant bits (LSBs) of the digital signal. These two bias voltages can be adjusted according to the match among the current source cells, and maintain a particular proportional relationship. The DAC further includes a bias converter for receiving the first bias voltage, and adjusting the second bias voltage according to the match among the current source cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.