BUY HCPL-A7841 https://www.utsource.net/itm/p/1888969.html

Description: The HCPL-A7841 is an optically coupled isolator consisting of an AlGaAs LED and an integrated high gain photo detector. Features: * High Speed: tPHL/tPLH = 10/10 ns (typical) * High Isolation Voltage: Viso = 5000 Vrms * Low Input Current: Iin = 5 mA (max) * Low Output Saturation Voltage: Vce(sat) = 0.4 V (max) Applications: * Power Supply Isolation * Industrial Control * Motor Control * Switching Power Supplies * Automotive (For reference only)