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US 5,483,194 AGranted
Differential current mode amplifier device
AssigneeAlcatel Mobile Communication France
InventorPierre Genest
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Abstract
A differential current mode amplifier device generates a common mode bias current. A translinear multiplier receives at two inputs this common mode bias current and a differential mode current to be amplified and delivers at two outputs an amplified differential mode current. The translinear multiplier is biased in a manner depending on the bias current received by the translinear multiplier. The device includes a circuit for compensating the common mode current at the output of the translinear multiplier.
Claims15
Differential current mode amplifier device comprising:
- means for generating a common mode bias current;
- a translinear multiplier receiving at two inputs said common mode bias current and a differential mode current to be amplified and delivering at two outputs an amplified differential mode current;
- means for biasing said translinear multiplier in a manner dependent on said bias current received by said translinear multiplier;
- and
- means for compensating the common mode current at said outputs of said translinear multiplier.
2 more elements
Dependencies are inferred from the claim text.