Amplifier stage with constant input impedance
US5973562A · kind A · utility
1Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1998 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Jul 22, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45479
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The amplifier stage of the invention has a first and a second differential amplifier branch and a first and a second impedance-burdened branch. The first impedance-burdened branch is connected in parallel with the input impedance of the first differential amplifier branch, and the second impedance-burdened branch is connected in parallel with the input impedance of the second differential amplifier branch. As a result, it is possible to maintain the amplifier parameters largely constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.