Analog-to-digital converter circuitry with offset distribution capabilities
US10447956B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2016 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jun 8, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Analog-to-digital converter (ADC) circuitry may receive multiple analog signals and output corresponding digital signals. During the conversion process, comparators may receive the analog signals and a ramp waveform and compare the two inputs to generate logic signals. The logic signals correspond to digital signals that are outputted by ADC circuitry. To enable offset distribution capabilities, offset distribution circuitry may be selectively coupled to the inputs of the comparators. The offset distribution circuitry may include switches that couples a voltage supply providing reference voltages to the comparators. The reference voltages may be conveyed via a capacitor to the comparators as offset voltages. The offset voltages may provide may be different for different ADC units to offset power consumption of different ADC units and reduce power surges in power sources coupled to ADC circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.