The OSB4XME1E1E part is an optocoupler from Optosupply. It is an optocoupler with an MOSFET output that can be used to interface digital circuits with low power analog signals. This part offers a high degree of isolation between input and output circuits, making it ideal for applications that require reliable isolation between circuits. It features a fast response time, low saturation voltage, and low power consumption. It is available in a wide variety of packages, such as DIP-8, SOIC-8, SMT-SDIP-8 and more.