Tunable low-distortion BiCMOS transconductance amplifiers

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Tunable low-distortion BiCMOS transconductance amplifiers

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Published

A linear BiCMOS transconductance amplifier based on a MOS transistor operated in the linear region is presented. The circuit uses regulated cascode techniques to restrict the variation of the drain-source voltage of the MOS device and hence enhance the linearity of the V-I conversion. Simulation results confirm that the proposed circuits have superior linearity compared with other transconductance amplifiers operating in the linear region.

Inspec keywords: electric distortion; circuit tuning; BiCMOS analogue integrated circuits; differential amplifiers

Other keywords: drain-source voltage; regulated cascode techniques; MOS transistor; linear region; V-I conversion; BiCMOS transconductance amplifiers

Subjects: Amplifiers; Mixed technology integrated circuits

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