DocumentCode :
2580061
Title :
A new cmos current differencing transconductance amplifier (CDTA) and its biquad filter application
Author :
Kacar, Firat ; Kuntman, Hakan
Author_Institution :
Dept. of Electr.-Electron. Eng., Istanbul Univ., Istanbul, Turkey
fYear :
2009
fDate :
18-23 May 2009
Firstpage :
189
Lastpage :
196
Abstract :
This paper presents a new high performance current differencing transconductance amplifier (CDTA), a recently reported active element, especially suitable for analog signal processing applications. The proposed CDTA provide high output impedances at port Z and X, excellent input/output current tracking. The proposed CDTA circuit operats at a supply voltages of plusmn 1.5 V. PSPICE simulation results using TSMC 0.35mu CMOS process model are included to verify the expected values. An example application using the proposed transadmittance type biquad filter is also presented. The proposed filter can realize LP, BP, HP, BS and AP filter responses from the same topology. The circuit also requires no component matching conditions.
Keywords :
CMOS analogue integrated circuits; SPICE; all-pass filters; amplifiers; band-pass filters; band-stop filters; biquadratic filters; high-pass filters; low-pass filters; topology; AP filter topology; BP filter; BS filter; CDTA high-output impedance; CMOS current differencing transconductance amplifier; HP filter; LP filter; PSPICE simulation; TSMC CMOS process; analog signal processing application; biquad filter application; size 0.35 mum; CMOS process; Circuit simulation; Circuit topology; Filters; Impedance; SPICE; Semiconductor device modeling; Signal processing; Transconductance; Voltage; CDTA; analog integrated circuits; biquad filter;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
EUROCON 2009, EUROCON '09. IEEE
Conference_Location :
St.-Petersburg
Print_ISBN :
978-1-4244-3860-0
Electronic_ISBN :
978-1-4244-3861-7
Type :
conf
DOI :
10.1109/EURCON.2009.5167629
Filename :
5167629
Link To Document :
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