Analogue to digital converter, and method of analogue to digital conversion
US7372389B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2006 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Sep 15, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/46
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Embodiments of the invention provide an analogue to digital converter comprising a dual differential digital to analogue converter (DAC) having first and second digital inputs for first and second digital input signals respectively, and having first and second analogue differential outputs for first and second differential output signals respectively, where the first and second digital output signals are associated with the first and second digital inputs respectively; storage for storing a DAC digital input value; logic for deriving the first and second digital input signals from the DAC digital input value, such that the difference between the first and second differential output signals from the DAC represents the DAC digital input value; a comparator for comparing the first and second differential output signals from the DAC with an analogue input signal and providing a comparator output; and a controller, responsive to the comparator output, for modifying the DAC digital input value such that the DAC digital input value substantially represents the analogue input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.