Novel FCS-Based Layout-Friendly Accurate Wide-Band Low-Power Ccii- Realizations

Abstract

This paper presents two novel Floating Current Source (FCS)-based CMOS negative second generation current conveyor (CCII−) realizations suitable for very large scale implementation. The proposed realizations provide high voltage and current tracking accuracy, as well as large voltage and current transfer bandwidths. Simulation results show that the¯rst proposed wideband CCII− bandwidth is about 972 MHz. Targeting low-power dissipation, a second low-power version of the wide-band CCII− is proposed at the expense of lower bandwidth and accuracy. The proposed CCII− realizations are layout-friendly because they can be easily fabricated in a systematic modular layout fashion. In addition, a fair comparison is held between the proposed realizations and the only FCS-based CCII− realizations in the literature to show the strength of the proposed circuits. The proposed two CCII− realizations show excellent immunity to process variations and transistor mismatch. In addition, they are insensitive to the temperature variations. Finally, two common CCII− applications are presented.