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OTA-C Type Fourth-Order Universal Filters

Yuan Shiwen(Yamshan University)  
A fourth-order active filter is presented, which is composed of operational transconductance amplifiers and capacitors.By changing the structure of its input-circuit,it can be used as a current-mode filter or a voltage-mode filter,and each of the both can simultaneously implement the fourth-order highpass,bandpassand lowpass flter functions.The result of computer simulation is presented at last.
【CateGory Index】: TN713
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