Differential amplifier
AssigneeInfineon Technologies AG
InventorSiegfried Ganser
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Abstract
An integrated circuit (IC) differential amplifier is disclosed. The differential amplifier comprises two amplifier stages each containing a transistor amplifier stage connected to one of the inputs of a push-pull input (RFin, RFXin) and a cascode stage connected to one of the outputs of a push-pull output (RFout, RFXout), where the cascode stages can be switched by a changeover switch (DC gain switch).
Claims16
An integrated circuit (IC) differential amplifier with a push-pull input which is connected to a transistor amplifier stage and a push-pull output which is connected to a cascode stage wherein the cascode stage is coupled to another cascode stage via a changeover switch and the transistor amplifier stage and the cascode stage comprise parallel-connected paths containing transistors which can be driven in parallel.
An integrated circuit (IC) differential amplifier comprising two amplifier stages, wherein each amplifier stage comprises a transistor amplifier stage connected to one input of a push-pull input and a cascode stage connected to one output of a push-pull output, each cascode stage being connected to the corresponding transistor amplifier stage, wherein the cascode stages are coupled via a changeover switch and each amplifier stage comprises parallel-connected paths comprising a transistor amplifier stage and a cascode stage, wherein the parallel-connected paths contain transistors which can be driven in parallel.
Dependencies are inferred from the claim text.