Title :
A new universal biquad using CDBAs
Author :
Salama, Khaled ; özoguz, Serdar ; Soliman, Ahmed
Author_Institution :
Inf. Syst. Lab., Stanford Univ., CA, USA
Abstract :
A new universal filter configuration using a recently introduced active element, namely Current Differencing Buffered Amplifier is presented. Independent control over filter parameters, namely the natural frequency, quality factor and gain is achieved. The filter offers all the advantages of Current Differencing Buffered Amplifier, i.e. being free from parasitic capacitances, current-mode operation and simple implementation while keeping the compatibility with existing voltage-mode signal processing circuits. Detailed analysis of the non-idealities of the active element is included. Experimental results that verify the analytical results are included
Keywords :
Q-factor; biquadratic filters; buffer circuits; current-mode circuits; differential amplifiers; active filter; current differencing buffered amplifier; current-mode operation; gain; natural frequency; parasitic capacitance; quality factor; universal biquad filter; Active filters; Band pass filters; CMOS technology; Circuit analysis; Circuit topology; Frequency; Operational amplifiers; Q factor; Signal processing; Voltage;
Conference_Titel :
Circuits and Systems, 2001. MWSCAS 2001. Proceedings of the 44th IEEE 2001 Midwest Symposium on
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-7150-X
DOI :
10.1109/MWSCAS.2001.986320
