High speed differential output driver with increased voltage swing and predrive common mode adjustment
US6218901A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Oct 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45696
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high speed differential output driver is provided with increased voltage swing and predrive common mode adjustment. The high speed differential output driver includes a differential input with a voltage amplifier receiving the differential input signal and a common mode adjustment signal and providing an adjustable voltage amplified signal. An emitter follower is coupled to the voltage amplifier. The emitter follower provides a level shifted voltage amplified signal. A driver is coupled to the emitter follower receiving the level shifted voltage amplified signal and providing a driver output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.