Uniform distribution dithering in sigma-delta A/D converters
US9356617B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2015 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Mar 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/458
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for analog-to-digital converters are provided. In an example, a sigma-delta analog-to-digital converter (ADC) can include a modulator configured to receive an analog signal and a decimation filter configured to provide a digital representation of the analog signal using an output of the modulator. In certain examples, the modulator can includes an integrator and a comparator od quantizer coupled to an output of the integrator. The comparator, in certain examples, can be configured to receive a second signal from the output of the integrator and to receive a plurality of dither signals, the dither signals can be configured to prevent limit cycles of the sigma-delta ADC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.