Importance

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Abstract

A gain-controlled amplifier is disclosed including: a set of switches; first and second transistors whose second terminals are coupled to each other via a resistive element; a first current mirror, coupled to a first terminal of the first transistor, for providing a set of first currents; a second current mirror, coupled to a first terminal of the second transistor, for providing a set of second currents; a first resistive network, coupled to the second terminal of the first transistor via a current source, for providing a first output signal; and a second resistive network, coupled to the second terminal of the second transistor via another current source, for providing a second output signal. Both the first and second resistive networks have a plurality of taps, coupling to either a first current or a second current through a switch of the set of switches.

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First Claim