Circuit with analog-to-digital converters of different conversion resolutions
US10700691B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2019 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | May 30, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/468
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit includes a first external terminal, a first lower resolution analog-to-digital converter (LRADC) coupled to the external terminal and configured to perform a first conversion of an analog signal received at the external terminal to a digital value, and a higher resolution analog-to-digital converter (HRADC). The HRADC is configured to selectively receive the analog signal from the first external terminal based on the digital value. When the digital value outputted by the first LRADC indicates a change in value of the received analog signal, the HRADC is provided with the analog signal and performs a second conversion of the analog signal to a second digital value. The first LRADC has a lower conversion resolution as compared to the HRADC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.