Mixed chopping and correlated double sampling two-step analog-to-digital converter
US10615818B1 · kind B1 · utility
2Cited by
7References
13Claims
0Family size
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Key dates
| Filing date | Jun 2, 2019 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Jun 2, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A two-step, hybrid analog-to-digital converter (ADC) includes a Delta-Sigma ADC that employs chopping to resolve MSBs, a Nyquist ADC that employs correlated double sampling (CDS) to resolve LSBs, and a combiner that combines the MSBs and the LSBs to generate a digital output signal. The Delta-Sigma ADC has first and second integrators where, after resolving the MSBs, the first integrator is re-configured to function as a reference buffer for the Nyquist ADC and the second integrator is re-configured to function as the Nyquist ADC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.