Clocked current-steering circuit for a digital-to-analog converter
US9419636B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2015 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Apr 9, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/747
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In one example, a current steering circuit includes an output transistor pair responsive to a first gate bias voltage. The current steering circuit further includes a first switch comprising a first source-coupled transistor pair coupled to the output transistor pair and responsive to a first differential gate voltage, and a second switch comprising a second source-coupled transistor pair coupled to the output transistor pair and responsive to a second differential gate voltage. The current steering circuit further includes a current source configured to source a bias current. The current steering circuit further includes a third switch comprising a third source-coupled transistor pair coupled between the current source and each of the first switch and the second switch, the third source-coupled transistor pair responsive to a third differential gate voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.