A/D converter including multiple sub-A/D converters
US9559711B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2016 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Apr 18, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1215
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An A/D converter includes: an input buffer; N sub-A/D converters including N first sampling circuits that are connected to the input buffer, and that sample the output analog signal in respective sampling slots; a control circuit that executes calibration for the N first sampling circuits one by one; a reference A/D converter including a second sampling circuit that is connected to the input buffer, and that samples the output analog signal in the same sampling slot as the sampling slot of one first sampling circuit under execution of the calibration among the N first sampling circuits; and a third sampling circuit that is connected to the input buffer, and that samples the output analog signal in the same sampling slots as the sampling slots of the (N−1) first sampling circuits out of the execution of the calibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.