Method for adaptive biasing of fully differential gain boosted operational amplifiers
US7852159B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Jul 24, 2008 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Jan 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45682
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An adaptive biasing technique improves fully differential gain boosted operational amplifiers transient characteristics and reduces power consumption. An adaptive biasing module includes a bias generation module and a bias replication module. The bias generation module generates a first control signal (VCMNB) and the first control signal is applied as an output common mode of a differential booster (inside the bias replication module). The bias replication module is coupled to the bias generation module for equalizing a common mode of the differential booster with the first control signal (VCMNB).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.