Digital-to-analog charge converter employing floating gate MOS transisitors
US5952946A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1997 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Sep 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/802
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a digital-to-analog converter having a plurality of inputs for digital signals, and an output for an analog signal. It also contains a charge integration circuit having an input and an output coupled to the converter output, and a plurality of floating gate MOS transistors corresponding to the plurality of converter inputs, the MOS transistors all having their source and drain terminals coupled together and to the input of the integration circuit, and having control terminals coupleable, under control from the plurality of inputs of digital signals, to different reference voltages having selected fixed values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.