研制了一种新型的四通道贴片式高速光电耦合器。介绍了该光电耦合器的结构、工作原理、参数设计、特点和参数曲线,并简述了其制作工艺。设计中采用独立腔体分隔技术,将四条光路完全从物理上分离,彻底杜绝多路光信号间相互干扰。该光电耦合器采用SOIC-16金属陶瓷管壳气密性封装,具有工作速度快、功耗低和体积小的特点。 Developed a new type of four-channel high-speed SMD optocouplers. The structure, working principle, parameter design, characteristics and parameter curves of the optocoupler are introduced. The manufacturing process is also briefly described. The design uses independent cavity separation technology, the four optical paths completely separated from the physical, completely eliminate the mutual interference between multiple optical signals. The optocoupler using SOIC-16 metal-ceramic tube hermetic package, with the work speed, low power consumption and small size.