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Analytical Synthesis of the Digitally Programmable Voltage-Mode OTA-C Universal Biquad

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1 Author(s)
Chang, Chun-Ming ; Dept. of Electr. Eng., Chung Yuan Christian Univ., Chung-li

None of the recently reported voltage-mode versatile filters are digitally programmable for applications like the easy addition of current-mode filtering signals to do the synthesis. None of the recently reported analytical synthesis methods are used for the realization of a multifunction filter. Both the above two induced motivations of researches have been merged, developed, and solved in this brief on the voltage-mode operational transconductance amplifier (OTA)-C universal biquad filter, which still achieves many advantages like the employment of all single-ended-input OTAs, all grounded capacitors, and the least number of active transistor and passive component counts, in addition to having a controllable gain, a cascadable input terminal, and the absence of the need to impose component matchings

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Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:53 ,  Issue: 8 )