Sixth‐order differential Sallen‐and‐Key switched capacitor LPF using a‐IGZO TFTs - Wadhwa - 2019 - International Journal of Circuit Theory and Applications - Wiley Online Library
Sallen-Key High Pass Butterworth Filter Calculator
Webench: Low pass sallen key filter using single supply for audio transmission. - Simulation, hardware & system design tools forum - Simulation, hardware & system design tools - TI E2E support forums