Regulated charge sharing analog-to-digital converter (ADC) apparatus and methods
US10972119B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2020 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | May 15, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/806
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analog-to-digital converter (ADC) including input circuitry to receive an input analog signal having an analog signal level. Sampling circuitry couples to the input circuitry and includes first and second capacitor circuits to sample the received input analog signal. The first and second capacitor circuits exhibit a relative charge imbalance as a result of the sampling that corresponds to the analog signal level. Regulated charge sharing circuitry regulates charge sharing transfers during multiple charge sharing transfer sequences with the first and second capacitor circuits. A digital output generates multiple bit values based on the charge sharing transfer sequences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.