Voltage Mode Universal Filter Using Current Conveyor
نویسندگان
چکیده
A second order voltage mode tunable universal filter is presented. The voltage mode filter is based on dual output second generation current controlled current conveyor (DOCCCII). The filter is capable of realizing high pass (HP), low pass (LP), band pass (BP), notch pass (NP) and all pass (AP) responses in voltage mode (VM). The filter employs only two capacitors and hence enjoys minimum component requirement. By properly exiting the filter structure with appropriate voltage signals the filter response in all four modes can be obtained. The filter enjoys tunability of quality factor and filter frequency. The filter is simulated in Hspice using 0.18μm CMOS model parameters obtained from TSMC. The DOCCCII works at a low supply voltage of ±1.5V.
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