"""AB Cascode"" amplifier in an input stage of an amplifier or comparator"
US5471172A · kind A · utility
12Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1994 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Aug 24, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45654
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An AB Cascode amplifier provides low quiescent current operation, while maintaining the high gain and wide bandwidth of prior art folded cascode amplifier. Instead of fixed current sources, the AB cascode amplifier uses variable current sources, which are biased by a fixed small current source and two variable biased transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.