Digital-to-analog converter (DAC) with common mode tracking and analog-to-digital converter (ADC) functionality to measure DAC common mode voltage
US8576099B2 · kind B2 · utility
1Cited by
7References
20Claims
0Family size
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Key dates
| Filing date | Feb 3, 2012 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Feb 3, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/66
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit includes a first circuit portion operable as a digital-to-analog converter (DAC) for generating a DAC common mode voltage signal (outp), a second circuit portion having a comparator for comparing the DAC common mode voltage (outp) against a received signal common mode voltage (vsumdc), the comparator providing a single bit output, and a single bit register configured to receive the single bit output of the comparator, the single bit output used to control a feedback circuit, the feedback circuit configured to control the DAC common mode voltage signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.