Successive approximation algorithm-based ADC self-correcting circuit
US10735018B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2017 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jun 21, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/362
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is a successive approximation algorithm-based ADC self-correcting circuit, comprising: a coding circuit, a voltage dividing resistor string, a comparator array, a multi-path selection switch, a first digital-to-analog converter, a reference circuit, a control register, and a data register; an input end of the coding circuit is connected to an output end of the comparator array; a positive-phase input end of each comparator in the comparator array is connected to a mobile end of the multi-path selection switch; a negative-phase input end of each comparator in the comparator array is correspondingly connected between each two neighboring resistors in the voltage dividing resistor string; an enabling end of the comparator array is connected to the control register; a first immobile end of the multi-path selection switch is used for receiving an analog signal, a second immobile send is connected to an output end of the first digital-to-analog converter, and a control end is connected to the control register; the reference circuit is connected to the voltage dividing resistor string and the comparator array for use to correct an intermediate level and voltage range of the volt…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.