System and method for establishing the input impedance of an amplifier in a stacked configuration
US6744308B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2002 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Aug 30, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/372
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit for establishing the input impedance of an amplifier includes an amplifier, a circuit component, a first feedback resistor, and a second feedback resistor. The amplifier has an input impedance and is coupled to a load having a load impedance. The circuit component is coupled to the load and shares at least a portion of a bias current with the amplifier. The first feedback resistor is coupled the amplifier and the load, and has a first impedance. The second feedback resistor is coupled to the amplifier and has a second impedance. The input impedance of the amplifier is established based at least in part upon the first impedance and the second impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.