BUY HCPL3131 https://www.utsource.net/itm/p/1908227.html

Description: The HCPL3131 is an optically coupled isolator containing a GaAsP LED on the input side and a high speed integrated photo detector on the output side. Features: * High speed: tPHL/tPLH = 4.0/4.0 ns (typical) * High isolation voltage: BV = 5300 Vrms (min) * Low input current: Iin = 1.6 mA (max) * Low output saturation voltage: VCE(sat) = 0.4 V (max) Applications: * Industrial control * Power supply * Signal transmission * Motor control * Automation (For reference only)