This article presents a mixed-mode electronically tunable first-order universal filter
configuration employing only one voltage differencing gain amplifier (VDGA), one capacitor …

This paper presents a possible usage of the voltage differencing transconductance amplifier
(VDTA) for the design of an electronically tunable single-input five-output voltage-mode …

In this paper, a new mixed-mode first-order universal filter configuration is presented that
employs three operational transconductance amplifiers (OTAs) and one grounded capacitor …

This paper presents a compact current-mode three-input single-output (TISO) type universal
filter. Only one voltage differencing transconductance amplifier (VDTA) and two grounded …

This article presents the circuit designs for a mixed-mode universal biquadratic filter and a
dual-mode quadrature oscillator, both of which use a single voltage differencing gain …

In this paper, the voltage-mode universal filter employing the active building block, called
voltage differencing differential difference amplifier (VDDDA) is introduced. The proposed …

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 …

An electronically tunable universal filter configuration which employs a single new active
device namely current follower transconductance amplifier (CFTA) and four passive …

Purpose This paper aims to achieve two main objectives. First, to introduce to the literature a
new versatile active building block, namely, voltage differencing differential voltage current …

In this paper, a novel single-input and multiple-output second-order current-mode universal
filter is proposed where lossy integrator blocks, scaling blocks and summing blocks are …