论文信息 - Low Voltage Rail to Rail CMOS Current Feedback Operational Amplifier and its Applications for Analog VLSI

Low Voltage Rail to Rail CMOS Current Feedback Operational Amplifier and its Applications for Analog VLSI

This paper presents a new CMOS current feedback operational amplifier (CFOA) with rail to rail swing capability at all terminals. The circuit operates as a class AB for lower power consumption. Besides operating at low supply voltages of ±1.5 V, the proposed CFOA has a standby current of 200 μA. The proposed CFOA circuit is thus a versatile building block for low voltage low power applications. The applications of the CFOA to realize a transconductor/multiplier cell, MOS-C differential integrator, MOS-C bandpass filter and MOS-C oscillator are given. PSpice simulations based on 1.2 μm level three parameters obtained from MOSIS are given.

Soliman A. Mahmoud | Hassan Elwan | Ahmed M. Soliman

[1] Erik Bruun. A dual current feedback op amp in CMOS technology , 1994 .

[2] Ahmed M. Soliman. Applications of the current feedback operational amplifiers , 1996 .

[3] P. E. Allen,et al. Introduction to the theory and design of active filters , 1980 .

[4] Adel S. Sedra,et al. Filter Theory and Design: Active and Passive , 1977 .

[5] Soliman A. Mahmoud,et al. Novel MOS-C balanced-input balanced-output filter using the current feedback operational amplifier , 1998 .

[6] J. Vlach,et al. Introduction to the theory and design of active filters , 1982, Proceedings of the IEEE.

[7] R. F. Wassenaar,et al. CMOS low-voltage operational amplifiers with constant-gm rail-to-rail input stage , 1992 .

[8] Alain Fabre. Insensitive voltage-mode and current-mode filters from commercially available transimpedance opamps , 1993 .

[9] O Elwan Hassan,et al. LV Rail To Rail CMOS CCII and its Application to Filter Design , 1997 .

[10] Mohammed Ismail,et al. A nonlinear CMOS analog cell for VLSI signal and information processing , 1991 .

[11] Coaxial Cable Driver. OA-07 Current Feedback Op Amp Applications Circuit Guide , 2002 .

[12] Ahmed M. Soliman. Current Feedback Operational Amplifier Based Oscillators , 2000 .