BiCMOS output driver
US5101120A · kind A · utility
4Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1991 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | May 16, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/001
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A BiCMOS output driver in which a bipolar device is driven by a control signal that biases the collector of an NFET. The control signal enables the bipolar to pull an output node to full potential (ground) quickly. The signal then falls within one nanosecond after the output reaches ground, pulling the bipolar out of saturation. A separate feedback device coupled between the base of the bipolar and ground can be added to pull the bipolar out of saturation before the control signal falls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.