Two reference voltage weighted capacitor digital to analog converter
US4667179A · kind A · utility
22Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1985 |
| Grant date | May 19, 1987 |
| Priority date | — |
| Expiry date | Mar 7, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/806
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A weighted capacitor digital to analog converter is disclosed which requires only one stage and one conversion step. By the use of two reference voltages and two groups of capacitors in parallel, various capacitors in these groups can be selectively switched from the reference voltages to ground potential in response to input binary digit signals thereby presenting a predetermined amount of voltage to the output amplifier depending upon the number and particular combination of capacitors switched or non-switched to ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.