Low bias current amplifier
US7948316B2 · kind B2 · utility
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1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2009 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Jul 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45648
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier is provided that includes an output portion that sources and sinks current associated with an output load and an amplification portion that is biased by a relatively small bias current with respect to an output current of the amplifier. The amplification portion provides an amplified output signal to the output portion. The amplifier further comprises at least one impedance component coupled between the output portion and the amplification portion to alter at least one pole associated with the amplifier to mitigate instability of the amplifier related to the relatively small bias current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.