Current cell driving circuit in digital-to-analog converter
US6608578B2 · kind B2 · utility
5Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2001 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Jan 18, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/742
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a current cell driving circuit in a digital-to-analog converter. The current cell driving circuit limits the potential of differential control signals to a given potential level by means of a voltage limiter using a parasitic capacitance of a transistor. Therefore, the present invention can effectively limit the potential of differential control signals DP and DN without compromising the power consumption and the circuit area and also can minimize the transfer time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.