Capacitor-based digital-to-analog converter for low voltage applications
US7268718B1 · kind B1 · utility
6Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2006 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Jul 17, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/66
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital-to-analog converter (DAC) compatible with CMOS technology and operable in low voltage applications. An input capacitor stores a charge sample according to a digital input signal and a previous output analog signal. An analog output circuit has a feedback capacitor to share the charge sample and accordingly generate a current output analog signal from an output node. The output node may be continually connected to the input capacitor through a pass resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.