Title :
Optimization of a rail to rail low voltage CCII for active filter applications
Author :
El Feki, Nadhmia Bouaziz ; Salem, Samir Ben ; Masmoudi, Dorra Sellami ; Derbel, Nabil
Author_Institution :
Res. Group: CIELS, Nat. Eng. Sch. of Sfax, Sfax
Abstract :
In this paper, we deal with an ultra Low voltage Rail to Rail high performance second generation current conveyor (CCII). An optimum transistor sizing was done applying a C++ software. The proposed circuit is able to operate at low voltage supply (plusmn 0.75TV). First, a frequency characterization of the optimized CCII is presented; PSPICE simulation for a 0.35mum CMOS technology show that best performances are obtained with the improved configuration. The current and voltage bandwidths are respectively 1.4834GHz and 2.035GHz, and the parasitic resistance at port X has a value of 87.65Omega for a control voltage of 0.35V. Then, these performances and the low power consumption are quite satisfactory for most RF applications: This CCII was used to realize a new current-mode Programmable Biquad filter and a Universal filter. PSPICE simulation results are included to demonstrate the results.
Keywords :
CMOS integrated circuits; SPICE; active filters; current conveyors; CMOS technology; PSPICE simulation; RF applications; active filter; current conveyor; current-mode programmable biquad filter; low power consumption; optimized CCII; optimum transistor; rail-to-rail low voltage CCII optimization; universal filter; voltage bandwidths; Active filters; Application software; Bandwidth; CMOS technology; Circuit simulation; Energy consumption; Frequency; Low voltage; SPICE; Voltage control; Current conveyors; Radiofrequency; current mode circuits; low power; low voltage;
Conference_Titel :
Design and Technology of Integrated Systems in Nanoscale Era, 2008. DTIS 2008. 3rd International Conference on
Conference_Location :
Tozeur
Print_ISBN :
978-1-4244-1576-2
Electronic_ISBN :
978-1-4244-1577-9
DOI :
10.1109/DTIS.2008.4540232
