Analog to digital converter with configurable sequence controller
US6486809B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 2000 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Aug 15, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1225
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital system is provided with an Analog to Digital converter (ADC) that has a configuration that allows a programmable number of Auto conversions to occur on two separate and independent, but cascadeable, sequencers (or state machines). For each conversion state, the sequencer/s can be programmed to arbitrarily select any one of a set of muxed analog input channels. In addition, each conversion state has a unique result register in which the converted value is placed at completion of conversion. This ADC control system gives the capability to set up various forms of input signal sampling strategies. For example, one such strategy samples and converts the same channel multiple times allowing an over-sampling algorithm to be easily performed. By over sampling, increased resolution over traditional single sampled conversion systems can be obtained by suitable processing of the over-sampled results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.