Wideband precision fixed-gain amplifier architecture, apparatus, and method
US6943626B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Jan 19, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/36
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus and method is disclosed for improving the gain precision and bandwidth of fixed-gain amplifiers, while providing high bandwidth and performance necessary in many applications. Fixed-gain amplifiers, having relatively precise gain, are connected together in a specific architecture to further increase the gain precision and bandwidth over any of the amplifiers operating independently. Due to the configuration of the amplifiers, the absolute gain error of individual amplifiers is substantially canceled such the gain error of the total circuit is greatly reduced. The disclose architecture is useful in many high speed, high bandwidth applications where very precise gain is needed, while avoiding the reduction in bandwidth caused by amplifiers using feedback to achieve gain stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.