Parallel analog-to-digital converter
US4990917A · kind A · utility
15Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Mar 7, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/367
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A parallel analog-to-digital converter having reference-voltage generating means dividing the fundamental reference voltage into exponential reference voltages according to an exponential scale, and further dividing each voltage between two consecutive exponential reference voltages into a plurality of individual reference voltages. As a result, the individual reference voltages have a nonlinear (exponential) characteristic that as the amplitude of an analog input voltage increases, the increment of the individual reference voltages becomes larger exponentially, thus greatly reducing the number of comparators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.