MAX909中文资料双/四/单路、高速、超低功耗、单电源TTL比较器数据手册ADI规格书

描述 Description

The MAX907/MAX908/MAX909 are dual/quad/single, high-speed, ultra-low-power voltage comparators designed for use in systems powered from a single +5V supply; the MAX909 also accepts dual ±5V supplies. Their 40ns propagation delay (with 5mV input overdrive) is achieved with a power consumption of only 3.5mW per comparator. The wide input common-mode range extends from 200mV below ground (below the negative supply rail for the MAX909) to within 1.5V of the positive supply rail.
Because they are micropower, high-speed comparators that operate from a single +5V supply and include built-in hysteresis, these devices replace a variety of older comparators in a wide range of applications. MAX907/MAX908/MAX909 outputs are TTL-compatible, requiring no external pullup circuitry. All inputs and outputs can be continuously shorted to either supply rail without damage. These easy-to-use comparators incorporate internal hysteresis to ensure clean output switching even when the devices are driven by a slow-moving input signal.
The MAX909 features complementary outputs and an output latch. A separate supply pin for extending the analog input range down to -5V is also provided.
The dual MAX907 and single MAX909 are available in 8-pin DIP and SO packages, and the quad MAX908 is available in 14-pin DIP and SO packages. These comparators are ideal for single +5V-supply applications that require the combination of high speed, precision, and ultra-low power dissipation.

特性 Features

• 700µA (3.5mW) Supply Current per Comparator
• Wide Input Range Includes Ground (or -5V, MAX909 only)
• Internal Hysteresis Provides Clean Switching
• Input and Output Short-Circuit Protection
• Internal Latch (MAX909 only)

应用 Application

• 电池供电系统
• 高速采样电路
• 线接收器
• 过零检测器

简介

MAX909属于集成电路（IC）的比较器。由制造生产的MAX909比较器逻辑比较器系列产品用于根据以数字格式表示的信息比较结果来生成输出；身份型比较器指示两个输入是否相同，幅度型比较器还指示两个输入不相同时哪个较大。它们不同于比较两个模拟输入幅度的器件，后者称为线性比较器且单独分类。