System and method for extending the overload range of a sigma delta ADC system by providing over-range quantization levels
US8212699B1 · kind B1 · utility
6Cited by
20References
21Claims
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Key dates
| Filing date | Jun 7, 2010 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Aug 31, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/454
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Examples of a system and method for sigma-delta analog-to-digital conversion of an electrical input signal are disclosed. An electrical input signal is received. A filtered analog signal is provided based on the electrical input signal and an analog feedback signal. A digital representation of the filtered analog signal is provided, the digital representation being one of K quantization levels, wherein K is a positive integer between 2L and 2L+1, L being a positive integer. The analog feedback signal is obtained based on the digital representation.
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