BUY HCPL4661 https://www.utsource.net/itm/p/116273.html
TRANSISTOR-STAGE-OUTPUT OPTOCOUPLER,2-CHANNEL,3KV ISOLATION,DIP
Description: The HCPL-4661 is an optocoupler with a GaAsP LED and a high speed integrated circuit (IC) output. Features: High speed response: tPHL, tPLH = 3.5 ns max High current transfer ratio (CTR): 50% min @ I F = 5 mA Low input current: I F = 5 mA High isolation voltage: BV = 5300 Vrms Low power consumption Available in DIP-8 package Applications: High speed logic interfacing Power supply control Industrial control Motor control Switching power supplies (For reference only)