Title :
A high-linearity design for rail-to-rail fully differential current conveyors
Author :
Caviglia, S. ; Gastaldo, P. ; Zunino, R. ; Caviglia, D.D.
Author_Institution :
Dept. of Electr., Electron. & Telecommun. Eng., Univ. of Genoa, Genoa, Italy
Abstract :
Second-generation current conveyors (CCII) provide flexible building blocks for current-mode circuits. This paper discusses a novel design for the CMOS realization of a rail-to-rail fully differential CCII (FDCCII). The FDCCII is eventually obtained by suitably combining two instances of a four-terminal block, which in practice implements a differential voltage CCIL The simulations show that the proposed design effectively addresses the major issues that affect state-of-the-art implementations of FDCCII: limitations in the dynamic range and unsatisfactory linearity of the input-output relationship.
Keywords :
CMOS analogue integrated circuits; current conveyors; current-mode circuits; integrated circuit design; CMOS realization design; current-mode circuits; differential voltage CCIL; dynamic range; four-terminal block; high-linearity design; input-output relationship; rail-to-rail FDCCII; rail-to-rail fully differential CCII; rail-to-rail fully differential current conveyors; second-generation current conveyors; Band-pass filters; CMOS integrated circuits; Dynamic range; Linearity; Mirrors; Transistors; complex filters; current-mode circuits; differential voltage current conveyor;
Conference_Titel :
Electronics, Circuits and Systems (ICECS), 2014 21st IEEE International Conference on
DOI :
10.1109/ICECS.2014.7050044