Method and system for operating two or more dynamic element matching (DEM) components with different power supplies for a delta-sigma modulator of an analog-to-digital converter
US6369733B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2001 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Apr 26, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/464
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and system of operating dynamic element matching (“DEM”) components of a DEM system with two or more power supplies are disclosed. A connection system of the DEM system is driven with one power supply operating at one voltage. Connection system couples to components that are to be matched and equalized in usage by ordering outputs to components and activating the components according to ordered outputs. A connection calculator of the DEM system is driven with another power supply operating at another voltage different from the one voltage. Connection calculator is coupled to the connection system, and connection calculator calculates an order of usage of components. A level shifter system level shifts voltage levels of signals from connection system to connection calculator, and another level shifter system level shifts voltage levels of signals from connection calculator to connection system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.