Abstract—In this paper, a modified CCCII is presented. We have used a current mirror with low supply voltage. This circuit is operated at low supply voltage of ±1V. Tspice simulations for TSMC 0.18μm CMOS Technology has shown that the current and voltage bandwidth are respectively 3.34GHz and 4.37GHz, and parasitic resistance at port X has a value of 169.32Ω for a control current of 120μA. In order to realize this circuit, we have implemented in this first step a universal current mode filter where the frequency can reach the 134.58MHz. In the second step, we have implemented two simulated inductors: one floating and the other grounded. These two inductors are operated in high frequency and variable depending on bias current I 0 . Finally, we have used the two last inductors respectively to implement two sinusoidal oscillators domains of frequencies respectively: [470MHz, 692MHz], and [358MHz, 572MHz] for bias currents I 0 [80μA, 350μA]. Keywords—Current controlled current conveyor CCCII, floating inductor, grounded inductor, oscillator, universal filter. I. INTRODUCTION N recent years, the current conveyor has improved especially for high operating frequencies, low power and low supply voltage.The concept of circuit current controlled conveyor CCCII was introduced in 1995 [1]. These circuits based on modern electronics allow the design of many electronic functions as well as the voltage mode instead of the current mode. These circuits represent a logical evolution of second generation current conveyor. They become used in high frequency applications filtering [2]-[5] and, oscillator [6].The second generation current controlled conveyor has three port networks X, Y and Z. the relation between terminal voltage and current is given by the following matrix equation:           ×           ± =           z x y x z x y V I V 0 1 0 0 R 1 0 0 0 I V I (1) The plus and minus signs in the third row specified the polarity of the current conveyor (CCCII+, CCCII-).Due to the N. Hassen is with the University of Monastir, Faculty of Sciences of Monastir, Tunisia, Boulevard de l'Environnement 5000 Monastir (phone: +21673 500 276; fax: +21673 500 278 ; (e-mail: nejib.hassen@ fsm.rnu.tn). T. Ettaghzouti is with the Faculty of Sciences of Monastir, Tunisia, Boulevard de l'Environnement 5000 Monastir (phone: +21673 500 276; fax: +21673 500 278 ; (e-mail:thourayataghzouti@yahoo.fr). K. Besbes is with the Faculty of Sciences of Monastir, Tunisia, Boulevard de l'Environnement 5000 Monastir (phone: +21673 500 276; fax:+21673 500 278; (e-mail: Kamel.besbes@fsm.rnu.tn). architecture used for the design of CCCII, the circuit will introduce parasitic elements. The characteristic equation has become:           ×           ± =           z x y z x y z x y V I V Y α 0 0 Z β 0 0 Y I V I (2) On the terminal Y and Z, two impedances Z y and Z z are specific to a parallel resistor with a capacitor. The impedance Z x on terminal X is a parasitic resistor R x . Where α and β denotes respectively current and voltage gains. In this article, we have improved the current controlled conveyor. Subsequently, we will use it to implement a current mode universal filter. Second, we will use it to produce two inductors: floating and tied to ground. Based, on these last two experiences, we have made two oscillators functioning at high frequency. II. NEW CCCII CONFIGURATION The circuit current controlled conveyors CCCII classic introduced by [7]-[11] is shown in Fig.1.a. In intention to ameliorate bandwidth in current mode of this circuit, we present two current mirrors FVF (M8, M9, and M14) and (M12, M13, M16) which works in low voltage and characterized by low input impedance [12-15] (Fig.1.b). The two current mirrors can duplicate the current in the borne X on to the borne Z. The transistors M14 and M16 are used to adjust the linearity of the transfer characteristic of two mirrors of the output current and have currents in the paths equal X and Z (I Z = I X = I d2 -I d4 ) The second property of CCCII is a voltage follower between terminal X and Y. the last pair is linked together by a mixed trans-linear loop (M1, M2, M3, M4). N GS N GS P GS P GS xy ) (V ) (V ) (V ) (V V 2 1 4 3 − = − = (3) With: THn N ox n N d N GS V ) L W ( C μ ) (I ) (V + = 2 1 and THp P ox p P d P GS V ) L W ( C μ ) (I ) (V + − = 2 1 The current through transistors M1 and M3 is equal to I 0 . In this case, the potential difference V xy is equal to: . Néjib Hassen, Thouraya Ettaghzouti, Kamel Besbes High-performance Second-Generation Controlled Current Conveyor CCCII and High Frequency Applications I World Academy of Science, Engineering and Technology Vol:5 2011-12-24 851 International Scholarly and Scientific Research & Innovation 5(12) 2011 International Science Index Vol:5, No:12, 2011 waset.org/Publication/53