Digital-to-analog converter with R-2R ladder network by polarity control
US7605735B2 · kind B2 · utility
5Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2007 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Dec 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/785
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital-to-analog converter (DAC) includes an R-2R ladder network, switches, and an operation amplifier (OP) with a feedback resistance, for providing an analog voltage in a positive polarity and a negative polarity. Each of the switches is switched between a connection to the OP and the reference voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.