Journal article Open Access

OTA Based Second Order Active Filter Realizes Lowpass, Highpass, Band Pass and Band Reject Filters

Vijay Laxmi Kalyani,; Vartika Gupta,; Harshita Khandelwal; Teena

Abstract: Due to the good controllability and electronic tunability features, OTA is used for designing of active filters. OTA based active filters required minimum component in comparative to other analog building blocks. In this paper, OTA based second order active filter is presented which realizes Low pass filter, High pass, Band pass and Band reject filters. The proposed circuit is designed using CA3080 IC on 20 KHz frequency so that it can be suitable for audio frequency ranges (0-20 KHz) and the peak to peak voltage is used 30 mV. Simulation results and PCB Layout, 3-D View are also shown so that it can be implemented on hardware. The NI-Multisim software and ultiboard is used for simulation results and PCB layout.

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