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A new current-mode triangular/square wave generator based on MO-CCCCTAs (Multiple output current controlled current conveyor transconductance amplifiers) is presented in this paper. The circuit description is very simple, its construction consists of 2 MO-CCCCTAs and 1 grounded capacitor without any external resistor. The output frequency and amplitude can be electronically/independently tuned via...
A new current-mode Schmitt trigger based on MO-CTTA (Multiple output current through transconductance amplifier) is presented in this article. The circuit description is very simple, its construction consists of only single MO-CTTA. The hysteresis and amplitude of the output current can be tuned independently/electronically. With mentioned features, it is very suitable to realize in a monolithic chip...
This article presents a current-mode quadrature oscillator using current controlled current feedback amplifiers (CC-CFAs) as active elements. The proposed circuit is realized from a lossy integrator and a lossy differentiator. The oscillation condition and oscillation frequency can be orthogonally controlled via input bias currents. The circuit description is very simple, consisting of merely 2 CC-CFAs,...
This article presents a basic current-mode building block for analog signal processing, namely current conveyor transconductance amplifier (CCTA) using the commercially available ICs. The performances are examined through PSPICE simulations and experiment, displaying usabilities of the new active element. The description includes some examples as a voltage-mode universal biquad filter, a grounded...
This article introduces a grounded capacitance multiplier employing current controlled current conveyor transconductance amplifiers (CCCCTAs). The provided capacitor is a grounded element. Its outstanding feature is that the capacitive value can be electronically adjusted by input bias currents of the CCCCTA and is temperature-insensitive. The circuit construction comprises two CCCCTAs, cooperating...
This article introduces a novel version for implementing current-mode precision full-wave rectifier. The features of the proposed circuit are that: it can rectify and amplify current signal with controllable output magnitude via an input bias current: the output current is free from temperature variation. In addition, direction of the output current signal can be arbitrarily controlled by controlled...
A circuit which can function both as quadrature oscillator and as a universal biquad filter (low-pass, high-pass, band-pass, band-reject and all-pass functions) is introduced in this paper. Working as quadrature oscillator, the oscillation condition and oscillation frequency can be adjusted independently with the input bias currents. Functioning as a universal biquad filter, the quality factor and...
This article presents a dual-mode (voltage-mode and current-mode) universal biquadratic filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, based on dual-output second-generation current controlled current conveyor (DO-CCCII). The features of the circuit are that: the bandwidth and natural frequency can be tuned electronically via the...
This article presents a quadrature oscillator using current controlled current differencing buffered amplifiers (CCCDBAs) as active elements. The oscillation condition and oscillation frequency can be electronically/orthogonally controlled via input bias currents. The circuit description is very simple, consisting of merely 3 CCCDBAs and 2 grounded capacitors. Without any external resistors and using...
This article presents the modified design for a basic current-mode building block for analog signal processing, named as current controlled current differencing buffered amplifier (CCCDBA). Its parasitic resistances at two current input ports can be controlled by an input bias current. The output current and voltage offsets including power consumption are low compared to ordinary CCCDBA description...
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