CMOS OPTIMUM CURRENT CONTROL CMOS CASCODE AMPLIFIER

摘要

A CMOS cascode amplifier includes a cascode circuit comprising a plurality of branches in parallel, each branch comprising a first transistor and a second switchable transistor connected in series forming a cascode pair, the cascode circuit comprising: Signal. The CMOS cascode amplifier further includes a bias circuit configured to bias the cascode circuit by providing a bias signal to the first transistor in each branch of the plurality of branches in the cascode circuit. The CMOS cascode amplifier is also configured to control the quiescent current in the cascode circuit based on selectively activating the plurality of branches by providing a switching control signal that switches the second switchable transistor in one or more activated branches on. And a switching control circuit.