Electronically Tunable Fractional Order Filter based on Single VDTA

Abstract

In this paper, a voltage differencing transconductance amplifier (VDTA) based voltage-mode (VM) single-input single-output (SISO) fractional order high-pass filter (FHPF) response, is proposed. The proposed filter employs single VDTA and makes use of two fractional order capacitors (FC). Functionality of the filter is verified through Cadence using 180 nm CMOS technology parameters; for fractional orders (FO) ranging from 0.5 to 0.9 in steps of 0.1. Sensitivity analysis has also been carried out to evaluate the performance of ${\color{green}{\text{the}}}$ proposed filter.