Analog to digital converter
US7274321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2005 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Nov 14, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/468
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A analog to digital converter, comprising: an input for receiving an input signal to be digitized; a first converter core for performing a first part of an analog to digital conversion, and for outputting a first digital result; a first residue calculator for calculating a first residue as a difference between the input signal and the first digital result; a second converter core for performing a second part of the analog to digital conversion by converting the first residue; wherein at least one of the first and second converter cores comprises at least three analog to digital conversion engines and a controller for controlling the operation of the engines such that the engines collaborate to perform a successive approximation search, and wherein a plurality of bits can be determined during a single trial step of the successive approximation search.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.