Current-Mode Universal Biquad Using Current Followers: A Minimal Realization
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Date
2011-12
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ORCID
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Referee
Mark
Journal Title
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Společnost pro radioelektronické inženýrství
Abstract
A new universal biquad filter is presented which employs a minimum number of active elements (only three current followers (CF)) along with a minimum number of passive components (i.e. only two resistors and two capacitors). The new circuit provides all the five standard filter responses (namely lowpass, bandpass, highpass, notch and allpass) from the same structure without requiring any component matching conditions and with explicit current outputs available from high output impedance terminals. The workability of the proposed universal biquad, realised with unity-gain current followers implemented in 0.35 µm CMOS and operated from 1.65 volts DC power supplies, is established by SPICE simulations.
Description
Citation
Radioengineering. 2011, vol. 20, č. 4, s. 898-904. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2011/11_04_898_904.pdf
http://www.radioeng.cz/fulltexts/2011/11_04_898_904.pdf
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Peer-reviewed
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en