Continuous time sigma-delta ADC with embedded low-pass filter
US8581762B2 · kind B2 · utility
2Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2011 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Jan 16, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/456
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A filtering analog to digital converter (ADC) includes an integrator receiving at its input an analog input signal. A filtering capacitor at the input of the integrator filters out a large portion of out-of-band interferers in the analog input signal. The integrator produces an output that is quantized to produce a digital output. A feedback path between the quantizer output and the integrator input includes a digital to analog converter (DAC).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.