Method and system for increasing resolution and accuracy of an analog to digital converter
US7486213B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2007 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Mar 20, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a method for increasing resolution and accuracy of an analog to digital converter receiving an input voltage includes dithering a number of digital output values from the analog to digital converter to generate a number of dithered values. The analog to digital converter can be an 8-bit analog to digital converter, for example. The dithered values are then averaged to generate an average dithered value. For example, the dithered values can be averaged using a moving average technique. The average dithered value is then scaled down to generate a scaled value. Thereafter, the scaled value is mapped to a, for example, 10-bit digital output having higher resolution and higher accuracy than the raw 8-bit output of the analog to digital converter. In this example, the resolution of the analog to digital converter is increased by a factor of four.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.