Thanks for watching. Here are more Sallen-Key Filter Design examples using Op Amps: Sallen-Key Differential Filter kzbin.info/www/bejne/mH2yn2WnmL6nr7c Sallen-Key Transfer Function kzbin.info/www/bejne/goqkg4yurLp9ncU Sallen Key Filter kzbin.info/www/bejne/r3mlpH6KdtNmjKM These examples discuss S domain, Pole-Zero and Transfer Function analysis for Analog Filter Design with op amp. I hope they are useful and interesting.