Radio frequency current steering digital to analog converter
US9432036B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2015 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Sep 8, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/742
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In one example, a current steering circuit for a digital-to-analog converter (DAC) includes a source-coupled transistor pair responsive to a differential gate voltage; a current source coupled to the source-coupled transistor pair operable to source a bias current; a load circuit coupled to the source-coupled transistor pair operable to provide a differential output voltage; a driver having a first input, a second input, and a differential output, the differential output providing the differential gate voltage; and combinatorial logic having a data input, a clock input, a true output, and a complement output, the true output and the complement output respectively coupled to the first input and the second input of the driver, the combinatorial logic operable to exclusively OR a data signal on the data input and a clock signal on the clock input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.