Operational amplifier with precise bias current control
US4959622A · kind A · utility
11Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1989 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | Aug 31, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45476
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An operational amplifier of the folded cascode type is disclosed and includes a differential input stage, connected with a differential to single ended output stage, a current mirror is interconnected with both stages for maintaining a precise relationship between bias current in the two stages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.