Automatic range shift system and method for an analog to digital converter
US7656330B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2008 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Jul 18, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/181
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Automatic range shifting for an analog to digital converter (ADC) includes combining an external analog input and a DAC output to provide an input to the ADC, detecting whether the range of the output of the ADC is above a predetermined upper range limit or below a predetermined lower range limit, and generating an adjustment code to increase the DAC output if the ADC output is above the upper range limit and to decrease the DAC output if the ADC output is below the lower range limit for decreasing the ADC input when the ADC output is above the upper limit and to increase the ADC input when the ADC output is below the lower limit to keep the ADC input within the ADC range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.