53.高性能密封型模拟隔离放大器设计应用

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