title: Tunable first-order resistorless all-pass filter with low output impedance.
abstract: This paper presents a voltage mode cascadable single active element tunable first-order all-pass filter with a single passive component. The active element used to realise the filter is a new building block termed as differential difference dual-X current conveyor with a buffered output (DD-DXCCII). The filter is thus realized with the help of a DD-DXCCII, a capacitor, and a MOS transistor. By exploiting the low output impedance, a higher order filter is also realized. Nonideal and parasitic study is also carried out on the realised filters. The proposed DD-DXCCII filters are simulated using TSMC the 0.25 µm technology.
authors.affiliation: Department of Electronics Engineering, A.M.U., Aligarh 202002, India.
authors.forename: Parveen
authors.identifier: 0000-0003-0832-8505
authors.initials: P
authors.lastname: Beg
mesh_terms: D025802:Electric Capacitance; D017097:Electric Impedance; D008962:Models, Theoretical