Integrated circuit and A/D conversion circuit
US6822599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2003 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Dec 10, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/145
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The integrated circuit comprises an interior division circuit to hold a first amount of charge corresponding to a weighted sum of a first analog voltage and a second analog voltage corresponding to a digital signal, an exterior division circuit to hold a second amount of charge corresponding to a difference between the first analog voltage and second analog voltage, and an amplifying circuit to generate a voltage not within the range between the first analog voltage and the second analog voltage by amplifying the voltage depending on the sum of the first amount of charge and the second amount of charge. The integrated circuit may provide a lower consumption and small area integrated circuit which can generate an exterior division voltage of higher accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.