53.高性能密封型模拟隔离放大器设计应用Designing with High Performance Hermetic Analog Isolation Amplifier White Paper By Jamshed N. Khan Optocoupler Applications Engineer Abstract Optically Isolated Hermetic Analog Isolation Amplifier Today, optocouplers are a ubiquitous electronic compo- The HCPL-7851 family of hermetic analog isolation am- nent, found in almost any piece of electrical equipment plifiers are designed to perform linear current sensing or in most industry segments. Since they were first in- or voltage sensing up to a minimum guaranteed band- troduced over twenty five years ago, optically coupled width of 40 kHz. A proprietary internal shi……