High speed current amplifier buffer circuit
US4791383A · kind A · utility
12Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1987 |
| Grant date | Dec 13, 1988 |
| Priority date | — |
| Expiry date | Sep 4, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/3076
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high speed buffer circuit is composed of complementary symmetry emitter follower driver and output stages. The input of driver stage includes active load devices cross-coupled to the output stage inputs so that the output stage is bootstrap driven from emitter followers. The circuit is biased by level shifting means to operate as a class AB current amplifier. It displays a wide bandwidth along with a high slew rate and can source or sink a large pulsed current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.