Analog digital converting device
US8362938B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2010 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | May 20, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/468
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Provided is an analog digital converting device which consumes a low power and guarantees fast operation characteristic. The analog digital converting device includes a sub-ADC and a successive approximation ADC. The sub-ADC converts an external analog signal into a first digital signal by using first and second reference voltages. The successive approximation ADC comprises a plurality of bit streams, and converts the external analog signal into a second digital signal according to a successive approximation operation using the first and second reference voltages. The successive approximation ADC receives the first digital signal, and converts the second digital signal in a state where one of the first and second reference voltages has been applied to the bit streams based on the first digital signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.