Don't Fear The Filter: Cascading Sallen-Keys | Hackaday
Aktive Filter berechnen: Software AktivFilter 3.3
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
Sallen and Key Filter Design for Second Order RC Filters
Advanced Tutorial Lesson 2: Designing Active Sallen-Key Filters - Emagtech Wiki
Aktive RC-Filterschaltungen
Aktiver Sallen-Key-Tiefpass dritter Ordnung mit 1 OPV