A realization of biquadratic current transfer functions using two CCIIs with current followers

摘要

This paper proposes four types of CFCCII (CCII with voltage followers) and novel configurations for realizing current transfer functions using CFCCIIs. The circuits are composed of two CFCCIIs and five passive elements, and can realize low-pass, band-pass, high-pass, band-stop and all-pass functions by selecting or adding output currents. The circuits have low passive sensitivities and low input impedances.