LP311中文资料具有选通信号的低功耗差分比较器数据手册TI规格书

描述 Description

The LP211 and LP311 devices are low-power versions of the industry-standard LM211 and LM311 devices. They take advantage of stable, high-value, ion-implanted resistors to perform the same function as the LM311 series, with a 30:1 reduction in power consumption but only a 6:1 slowdown in response time. They are well suited for battery-powered applications and all other applications where fast response times are not needed. They operate over a wide range of supply voltages, from ±18 V down to a single 3-V supply with less than 300-µA current drain, but are still capable of driving a 25-mA load. The LP211 and LP311 are quite easy to apply free of oscillation if ordinary precautions are taken to minimize stray coupling from the output to either input or to the trim pins. In addition, offset balancing is available to minimize input offset voltage. Strobe capability is also provided to turn off the output (regardless of the inputs) by pulling the strobe pin low.

The LP211 is characterized for operation from –25°C to 85°C. The LP311 is characterized for operation from 0°C to 70°C.

特性 Features

• Low Power Drain . . . 900 µW Typical With 5-V Supply
• Operates From ±15 V or From a Single Supply as Low as 3 V
• Output Drive Capability of 25 mA
• Emitter Output Can Swing Below Negative Supply
• Response Time . . . 1.2 µs Typ
• Low Input Currents:        Offset Current ...2 nA Typ        Bias Current . . . 15 nA Typ
• Wide Common-Mode Input Range:
• –14.5 V to 13.5 V Using ±15-V Supply

• Same Pinout as LM211, LM311
• Designed To Be Interchangeable With Industry Standard LP311

简介

LP311属于集成电路（IC）的比较器。由TI制造生产的LP311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。