Ultra high speed, low power, flash A/D converter utilizing a current mode regenerative comparator
US6037890A · kind A · utility
34Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1997 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Sep 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2207/063
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for performing analog to digital conversion. A voltage to current converter converts an analog input voltage to an input current. A current reference generates a reference current. A plurality of scaling elements scaled the reference current to yield a plurality of scaled reference currents each corresponding to some voltage level within the dynamic range of the input voltage. The input current is compared to each of the scaled reference currents in a plurality of current comparators to generate a thermometer code from which a digital representation of the analog input voltage is derived.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.