A new CMOS electronically tunable current conveyor and its application to current-mode filters

In this paper, a new CMOS high-performance electronically tunable second-generation current conveyor (ECCII) is presented. The current gain of the proposed ECCII can be controlled electronically by adjusting the ratio of dc bias currents of the ECCII. The output terminal of the proposed ECCII has hi...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems. 1, Fundamental theory and applications Fundamental theory and applications, 2006-07, Vol.53 (7), p.1448-1457
Main Authors: Minaei, S., Sayin, O.K., Kuntman, H.
Format: Article
Language:English
Subjects:
Band pass filters
Circuit simulation
Circuits
CMOS
CMOS process
Current conveyors
current mode
Current-mirror
Electric potential
electronically tunable second-generation current conveyor (ECCII)
filters
Gain
High impedance
Impedance
Low pass filters
Performance gain
Semiconductor device modeling
SPICE
Terminals
Tunable circuits and devices
Voltage
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Summary:In this paper, a new CMOS high-performance electronically tunable second-generation current conveyor (ECCII) is presented. The current gain of the proposed ECCII can be controlled electronically by adjusting the ratio of dc bias currents of the ECCII. The output terminal of the proposed ECCII has high impedance, which enables easy cascadability. Also, as an application, the proposed ECCII is used for realizing a universal current-mode filter. The filter realizes low-pass, bandpass, and high-pass responses simultaneously. The low-pass response is obtained at high impedance output and its gain can be independently tuned by changing the current gain of the relevant CC. SPICE simulation results using TSMC 0.35-/spl mu/m CMOS process model shows excellent performance for the proposed ECCII. The proposed circuit consumes average power of 6.6 mW using /spl plusmn/1.5-V supply voltages.
ISSN:1549-8328
1057-7122
1558-0806
DOI:10.1109/TCSI.2006.875184