A high performances CMOS CCII and high frequency applications

In this paper, we propose an improved translinear based CCII configuration. Heuristic algorithm is used for optimal sizing regarding static and dynamic performances. PSPICE simulations for AMS 0.35 mum CMOS technology show that the current and voltage bandwidths are respectively 2.6 GHz and 3.9 GHz, and the parasitic resistance at port X (RX) has a value of 18 Omega for a control current of 100 muA. The improved configuration is used as a building block into high frequency design applications: a current controlled oscillator and a tunable fully integrable band pass filter. The oscillator frequency can be tuned in the range of [290-475 MHz] by a simple variation of a DC current. The central frequency of the band pass filter can be varied in the range of [1.22-1.56 GHz] and the quality factor vary in the range [8-306] with a simple variation of a DC current.