Dual slope analog-to-digital converter with automatic, short cycle range determination
US4633221A · kind A · utility
5Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1985 |
| Grant date | Dec 30, 1986 |
| Priority date | — |
| Expiry date | Oct 9, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/52
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A dual slope analog-to-digital converter with automatic short cycle range determination. The time period of the signal integrate phase is adjusted to accommodate different ranges of input signals. Range selection is achieved automatically with the converter switching quickly from one range to another until the right range is found, without the necessity of displaying an "out of range" reading. Normal mode rejection of 60 Hz noise is achieved on all timing ranges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.