New 1.5-V CMOS second generation current conveyor based on wide range transconductor

• DOI: 10.1007/s10470-006-9703-3
• Publication Date: 2006-09-13T15:48:03Z
• Authors: Ahmed H. Madian; Soliman A. Mahmoud; Ahmed M. Soliman
• Keywords: Current conveyor

This paper presents a novel CMOS low-voltage and low-power positive second-generation current conveyor (CCII+). The proposed CCII+ uses two n-channel differential pairs instead of the complementary differential pairs; i.e. (n-channel and p-channel), to realize the input stage. This solution allows almost a rail-to-rail input and output operation; also it reduces the number of current mirrors needed in the input stage. The CCII+ is operating at supply voltages of ±0.75 V with a total standby current of 133 ?A. The application of the proposed CCII+ to realize a MOS-C second order maximally flat low-pass filter is given. PSpice simulation results for the proposed CCII+ and its application are given.