Semiconductor integrated circuit device
US8686885B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2013 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Jan 17, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/123
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A semiconductor integrated circuit device having A/D converters for converting, by means of digital correction processing, analog input signals into digital signals is reduced in area. The semiconductor integrated circuit device has a first A/D converter and a second A/D converter. In a first mode, a first test signal is inputted to both the first and second A/D converters, and a first correction coefficient for the first A/D converter and a second correction coefficient for the second A/D converter are calculated. In a second mode, the first A/D converter converts a first analog signal into a first digital signal by subjecting the first analog signal to a first digital correction processing and the second A/D converter converts a second analog signal into a second digital signal by subjecting the second analog signal to a second digital correction processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.