Multi-channel high-precision ADC circuit with self-calibration of mismatch error
US10742226B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2019 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Jun 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/14
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention discloses a multi-channel high-precision ADC circuit with self-calibration of mismatch error, belonging to the technical field of integrated circuit. The multi-channel high-precision ADC circuit with self-calibration of mismatch error comprises a gain error compensation circuit, a clock phase error compensation circuit, an N-bit analog-digital converter of M-channel, a gain error quantization circuit, a clock phase error quantization circuit and a control circuit. The multi-channel high-precision ADC circuit with self-calibration of mismatch error can automatically choose the calibration precision according to system precision and hardware overhead, and has the characteristic of low power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.