Inherently monotonic high resolution digital to analog converter
US8742965B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 2012 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Jul 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/68
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatus implementing a monotonic output digital to analog converter (DAC). A high resolution monotonic DAC may be built from a lower resolution DAC using weighting functions that combine the outputs of the lower resolution DAC such that monotonicity is maintained across major carry transitions. The lower resolution DAC should have a true output and a complementary output with a half LSB bias in the output. An extended resolution DAC may be built of; cascaded low resolution DACs; a low resolution DAC in a recursive arrangement with an intermediate storage of its output; or a low resolution DAC with weighting functions that adjust at each of several major carry transition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.