CMOS CURRENT-MODE INTEGRATOR ANDDIFFERENTIATOR FOR LOW VOLTAGE AND LOW POWER APPLICATIONS | ||||
| JES. Journal of Engineering Sciences | ||||
| Article 9, Volume 42, No 1, January and February 2014, Page 149-164 PDF (536.75 K) | ||||
| Document Type: Research Paper | ||||
| DOI: 10.21608/jesaun.2014.114295 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Fathi A. Farag | ||||
| Electronics and Communications Department, Faculty of Eng.,Zagazig University, Zagazig. Egypt. | ||||
| Abstract | ||||
| A new approach for CMOS Current-Mode Integrator (CMI) and Differentiator (CMD) realization are presented in this work. The proposed circuits are employed the inverter-based second-generation current conveyor (CCII). The CCII circuit achieves minimum number of stack transistors between the rail supply and class AB operation ability. Therefore, the proposed circuits are considered as low voltage and low power (LVLP) analog circuit. Moreover, the programmability of the proposed CMI and CMD can be realized using transconductance gain of the CMOS inverter. The CMOS inverter is characterized using a set of free hand equations, which are,modeled the CMOS inverteras analog device. The high input impedance of the CMOS inverter simplifies design of the op-amp since it is loaded only by capacitor. Second order filter is realized using the proposed CMI and CMD. The designed filter achieved independently center frequency (o) and quality factor (Q) tuning. The proposed circuits are designed and simulated using the MOST parameters of IBM 0.13μ CMOS technology. | ||||
| Keywords | ||||
| CMOS analog circuit design; Current mode integrator (CMI); Current mode signal processing; current conveyor (CCII); current mode differentiator (CMD); low voltage low power (LVLP); and Biquad filter | ||||
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