Abstract
AbstractThis article presents three different higher‐order inverse filter (IF) configurations using current differencing buffered amplifier (CDBA) as an active component and a few passive elements. The topology can be used to synthesize fourth‐order inverse low pass filter (FO‐ILPF), inverse band pass filter (FO‐IBPF), and inverse all‐pass filter (FO‐IAPF) using suitable admittance combinations. PSPICE simulations verify the functionality of the proposed IFs with the CMOS‐based CDBA using 180 nm technology. The theoretical analysis and simulated results are also carried out, which shows that they are in close agreement. The passive sensitivity analysis, non‐ideality analysis, Monte Carlo simulation, temperature analysis, percentage of total harmonic distortion (%THD), and noise analysis of the proposed filters are also performed. The proposed design has also been implemented using the current feedback operational amplifier (CFOA) as IC AD844AN to verify the functionality.
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