Comparison of the Fully-Differential and Single-Ended Solutions of the Frequency Filter with Current Followers and Adjustable Current Amplifier

摘要

Two solutions of universal and adjustable current-mode filters are presented in this contribution. The first of them is able to process single-ended (S-E) signals in communications and the other can operate fully-differentially (F-D) and therefore is well applicable for balanced transmission lines. Both circuits have adjustable quality factor and both are analyzed in this contribution. Their simulation results are compared to each other. Main contribution of this paper is the presentation of two novel solutions and their mutual comparison.