关键词: 窗口比较器, RS-485接收器, 失效保护功能

Abstract: The window comparator and high speed comparator are combined to solve the problem of low working rate caused by threshold deviation method while implementing RS-485 receiver open circuit, short circuit and termination fail-safe functions. Using 5 V process, the data rate is increased to 50 Mbit/s after slightly increasing the receiver quiescent power consumption (5%) and layout area (10%).

Key words: window comparator, RS-485 receiver, fail-safe function