Automatic offset compensating bipolar A/D converter circuit
US4766417A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1987 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Jun 1, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An automatic offset compensating bipolar A/D converter circuit includes an A/D converter and a feedback circuit, which automatically compensates offset error between a specific level of input having analog voltage and a specific output code of output digital value corresponding to that input analog voltage. The A/D converter can convert the input analog voltage, which includes residual noises more than 1 LSB, into an output digital value. The feedback circuit can add a compensation voltage to the input analog voltage so as to equalize the posibilities of occurrence of codes which are more than and less than a specific output code of an output digital value to each other in accordance with an output digital value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.