Realization of arbitrary current transfer functions based on commercially available CCII + s
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KünyeYüce, E., & Minaei, S. (2014). Realization of arbitrary current transfer functions based on commercially available CCII + s. International journal of circuit theory and applications, 42(7), 659-670. http://dx.doi.org/10.1002/cta.1880
In this paper, a new topology for realizing arbitrary nth-order current transfer function (TF), consisting of only plus-type second-generation current conveyors (CCII+s), is suggested. The proposed TF simulator employs only grounded capacitors and is free from the passive element matching requirements. The developed TF simulator can be constructed directly with commercially available active components such as AD844s. It has low-input and high-output impedances, a feature which makes it fully cascadable with other current-mode topologies. Moreover, the proposed simulator can provide gain at its outputs. Simulation and experimental test results for various filter examples are included to confirm the claimed theory.