Title :
Current feedback operational amplifier(CFOA) based programmable lossless floating inductor realization
Author :
Said, Lobna A. ; Madian, Ahmed H. ; Ismail, Mahmoud H. ; Soliman, Ahmed M.
Author_Institution :
Electron. Dept., German Univ. in Cairo, Cairo, Egypt
Abstract :
A CMOS digitally programmable lossless floating inductor is proposed. The proposed inductor is based on current feedback operational amplifier and resistor array to provide digital tuning of the inductance value. The presented block realizes a programmable floating inductor tuned from 0.4167 mH to 5.67 mH. As an application for the proposed circuit a resonant circuit and low pass filter have been realized using the digital programmable circuit. The simulation results has been demonstrated and discussed using a SPICE simulation for 0.18 μm TSMC CMOS technology and dual supply voltages ±1.5 V.
Keywords :
CMOS digital integrated circuits; SPICE; feedback amplifiers; low-pass filters; operational amplifiers; CMOS digitally programmable lossless floating inductor; SPICE; current feedback operational amplifier; digital programmable circuit; inductance value digital tuning; low pass filter; programmable lossless floating inductor realization; resistor array; resonant circuit; size 0.18 mum; voltage 1.5 V; CMOS integrated circuits; Inductors; Reliability; Resonant frequency; Switches; Switching circuits; Transistors; Active filters; CFOA; Current mode; Digitally programmable;
Conference_Titel :
Engineering and Technology (ICET), 2014 International Conference on
Conference_Location :
Cairo
DOI :
10.1109/ICEngTechnol.2014.7016778
