Resolution programmable SAR ADC
US9906232B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2017 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Mar 10, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0014
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An example successive approximation (SAR) analog-to-digital converter (ADC) includes: a track-and-hold (T/H) circuit configured to receive an analog input signal; a digital-to-analog converter (DAC); an adder having inputs coupled to outputs of the T/H circuit and the DAC; a comparison circuit coupled to an output of the adder and configured to perform a comparison operation; and a control circuit, coupled to an output of the comparison circuit, configured to: receive a selected resolution; gate the comparison operation of the comparison circuit based on the selected resolution; and generate a digital output signal having the selected resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.