Semiconductor device including analog-to-digital conversion circuit
US10003351B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2017 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Sep 18, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1245
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An object of the present invention is to shorten time required for detecting disconnection in an input terminal of an A/D conversion circuit. A semiconductor device includes a first input channel that couples a first input terminal and an A/D conversion unit to each other, a second input channel that couples a second input terminal and the A/D conversion unit to each other, and a control circuit unit that separates the second input channel from the second input terminal and the A/D conversion unit to charge or discharge the second input channel when a signal input into the first input terminal is sampled by the A/D conversion unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.