Method and apparatus for compensating an amplifier
US6924701B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 2003 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Jun 3, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45291
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for compensating an amplifier is disclosed which significantly improves the unity gain bandwidth of the amplifier. In an embodiment of the invention the amplifier includes at least one compensated pair of cascode coupled transistors including: an input transistor, a cascode transistor, and a bypass element. The input transistor exhibits a first transition frequency. The cascode transistor is cascode coupled to the input transistor. The cascode transistor exhibits a second transition frequency less than or equal to the first transition frequency of the input transistor. The bypass element couples across a corresponding current interface of the cascode transistor to substantially bypass the cascode transistor at a pole frequency thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.