| 摘要 |
A dc distributed Gm gain control circuit formed from differential bipolar distributed amplifier topology. In accordance with an important aspect of the invention, the distributed Gm gain control relies on a shunt configured, area weighted, transistor current source switches (QAx, QBx, QCx, QDx) for each differential amplifier stage (22, 24, 26, 28) of the distributed amplifier (20) in order to control the offset voltages of each differential amplifier stage (22, 24, 26, 28) without imposing performance degradation by way of a series resistive ladder.
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