Multi-Function Active-Only High-Order Current-Driven Filter

[摘要] A new multi-function high-order current-driven filter is proposed. The filter uses onlyoperational amplifiers, and operational transconductance amplifiers (OTAs). Withoutusing any external passive elements, a variety of high-order input-current/output-currentand/or input-current/output-voltage responses can be realised without changing thecircuit topology and without any matching or cancellation conditions. The parameters ofthe high-order filter responses can be electronically tuned by adjusting the bias currentsof the OTAs.

[学科分类] 电子、光学、磁材料