Tri-state differential amplifier
US4644196A · kind A · utility
33Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1985 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Jan 28, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/412
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An amplifier has a pair of common source transistors in which the sources are coupled together during a first mode of operation and isolated from each other during a second mode of operation. A current source provides current between a power supply terminal and these sources during the first mode and prevents current flow therebetween during the second mode. A pair of switchable loads act as loads for the common source transistors during the first mode and are switched off during the second mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.