Yazar "Minaei, Shahram" seçeneğine göre listele

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    Metamutator applications: a quadrature MOS only oscillator and transconductance/transimpedance amplifiers
    (Springer New York LLC, 2016-06-18) Göknar, İzzet Cem; Yıldız, Merih; Minaei, Shahram
    NMOS based circuit realizations of a sinusoidal quadrature oscillator, a transconductance, a transimpedance amplifier are presented. All the circuits are constructed with a voltage-mode “Metamutator” consisting of an analog adder and a subtractor which is one of its possible realizations. The most important feature of the proposed circuits is their extremely simple structures containing only twelve NMOS transistors (six for adder, six for subtractor). Another significant advantage of the proposed circuits is that no external passive element is needed for the oscillator and only one resistor is used for each amplifier circuit; a variable resistor can provide gain adjustability. The post-layout simulations of all the proposed circuits have been executed using TSMC 0.25 µm process parameters with ±1.25 V power supply voltage.
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    MOS only oscillator using adder and subtractor circuits
    (IEEE, 2015) Yıldız, Merih; Göknar, İzzet Cem; Minaei, Shahram
    In this paper an NMOS based sinusoidal oscillator is presented. The circuit is constructed with voltage-mode (VM) NMOS-based analog adder and subtractor circuits which respectively perform V-1+V-2 and V-1-V-2 operations on the input voltages. The most important feature of the proposed circuits is their extremely simple structures containing only twelve NMOS transistors (six for the adder, six for the subtractor). Another significant advantage of the proposed circuits is that no external passive components are being used. The post-layout simulations of the proposed oscillator circuit have been executed using TSMC 0.25 mu m process parameters with +/- 1.25 V power supply voltage.