UNIVERSAL CURRENT-MODE FILTER WITH ONE INPUT AND MULTI-OUTPUT USING CCIIS AND CFS

摘要

A novel universal current-mode second-order filter with one input and four outputs employing two second-generation current conveyors (CCIIs), three current followers (CFs), two capacitors and three resistors is proposed. The proposed circuit offers the following advantages: (ⅰ) realization of lowpass, highpass, bandpass, notch and allpass signals from the same configuration, (ⅱ) low active and passive sensitivities, (ⅲ) orthogonal tuning of the parameters g and ω_o, and (ⅳ) without match components. Experimental results that confirm the theoretical analyses are obtained.