Operational amplifier with all NPN transistor output stage
US5285170A · kind A · utility
4Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1992 |
| Grant date | Feb 8, 1994 |
| Priority date | — |
| Expiry date | Nov 30, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/3088
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An operational amplifier achieves higher operating speed by using an all NPN transistor output drive stage. A control circuit in output drive stage receives an input signal and providing first and second control signals. The first and second control signals in turn drive first and second NPN output drive transistors arranged in a totem pole configuration between first and second power supply conductors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.