Low voltage CMOS fully differential current feedback amplifier with controllable 3-dB bandwidth |
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| Authors: | Ahmed H. Madian Soliman A. Mahmoud Ahmed M. Soliman |
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| Affiliation: | 1.Electronics and Communication Department,Cairo University,Cairo,Egypt;2.Electrical & Electronics Department,German University in Cairo (GUC),Cairo,Egypt |
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| Abstract: | This paper presents a CMOS fully differential current feedback operational amplifier with controllable 3-dB bandwidth. The FDCFOA has the advantage of a wide range controllable 3-dB bandwidth (∼57–500 MHz) without changing the feedback resistance. The FDCFOA has a standby current of 320 μA. Application of the proposed FDCFOA in realizing second order low-pass filter with controllable 3-dB bandwidth is given. PSpice simulations of the FDCFOA block and its application are given using 0.25 μm CMOS technology from MOSIS and dual supply voltages ±0.75 V. |
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