Selectable single mode or differential mode operation in a single amplifier
US6664851B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2002 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Oct 9, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/72
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A dual mode amplifier having single ended and differential ended modes of operation using only one set of output pads or terminals. The dual mode amplifier has two differential amplifiers, connected by coupling circuitry, each differential amplifier receiving a pair of differential input signals and having one output terminal. By activating and deactivating the coupling circuitry, the differential amplifiers can operate in two modes using the one set of output terminals. In the singled ended mode, the differential amplifiers operate independently, each converting the differential input signals to a singled ended output signal at their respective output terminals. In the differential mode, the differential amplifiers operate together to provide a pair of differential output signals at the output terminals based upon the pair of input signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.