Differential transconductor stage dynamically controlled by the input signal's amplitude
US5726604A · kind A · utility
5Cited by
3References
28Claims
0Family size
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Key dates
| Filing date | Sep 15, 1993 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Sep 15, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45492
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The dynamic range of operation of a differential transconductance input stage is reduced when the amplitude of the input signal decreases, thus reducing the level of the noise that is generated by the input stage. A DC signal representative of the sensed amplitude of the input signal is employed for either reducing the value of a common, emitter-degenerating resistance or of the bias current that is forced in the two branches of the differential input stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.