| 摘要 |
The low noise amplifier comprises a pair of differential amplifier transistors (Ml, M2) having their drains connected to respective cascode transistors (M3, M4). While the gates of the amplifier transistors (Ml, M2) are connected to an input differential inductor (Ll) for receiving an RF input signal, the sources of the amplifier transistors (Ml, M2) are connected to a source differential inductor (L2). The drains of the cascode transistors (M3, M4) are connected to a load differential inductor (L3) and to the inputs of a buffer circuit (260) comprising two source followers (M0l, M02). The tail current for the differential amplifier is provided by a current source (272) via a current mirror (M5, M6).
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