Apparatus and method for analog-digital converting
US9432037B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2015 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Oct 28, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/804
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Provided is an apparatus for analog-digital converting that includes a Most Significant Bit (MSB)-Digital Analog Converter (DAC) for converting a digital signal into an analog signal, a trim capacitor, a Least Significant Bit (LSB)-DAC, coupled to the trim capacitor, for converting a digital signal into an analog signal, a bridge capacitor connecting the MSB-DAC and the LSB-DAC, a comparator for measuring a voltage value at the MSB-DAC and LSB-DAC and outputting a result of comparing with a sampled voltage value, and a controller for generating first measurement data by digital converting a first measurement value output from the comparator by applying a reference voltage to a unit capacitor of the MSB-DAC, for generating second measurement data by digital converting a second measurement value output from the comparator by applying the reference voltage to the LSB-DAC, and controlling the trim capacitor by comparing the first and second measurement data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.