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Design of SallenKey Low Pass Filter for High Bandwidth

Author(s): Sonia Behra | Premprakash Mourya | Kamlesh Chaudhary | Vikas Mishra

Journal: International Journal of Computer Applications
ISSN 0975-8887

Volume: icwet;
Issue: 7;
Date: 2012;
Original page

Keywords: Low pass filter | AIM-Spice | Sallen Key | Equal and unequal component design | Cut off frequency (f_c) | Quality factor (Q) | Bandwidth (B.W)

In this paper, an active second order filter used is a Sallen key low pass filter which is designed and simulated using AIM-Spice for different values of gain to see the effect on the bandwidth and cutoff frequency. An unequal component design is used to overcome the limitation of equal component filter i.e. overshoot and reduced bandwidth at gain more than 1.5.

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