LM339集成电路（IC）的比较器规格书PDF中文资料

LM339属于集成电路（IC）的比较器。由意法半导体集团制造生产的LM339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。

DESCRIPTION

These devices consist of four independent precision voltage comparators with an offset voltage specifications as low as 2mV max for LM339A, LM239A and LM139A. All these comparators were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible.

These comparators also have a unique characteristic in that the input common-mode voltage range includes ground even though operated from a single power supply voltage.

■ WIDE SINGLE SUPPLY VOLTAGE RANGE OR

DUAL SUPPLIES FOR ALL DEVICES : +2V TO

+36V OR ±1V TO ±18V

■ VERY LOW SUPPLY CURRENT (1.1mA)

INDEPENDENT OF SUPPLY VOLTAGE

(1.4mW/comparator at +5V)

■ LOW INPUT BIAS CURRENT : 25nA TYP

■ LOW INPUT OFFSET CURRENT : ±5nA TYP

■ LOW INPUT OFFSET VOLTAGE : ±1mV TYP

■ INPUT COMMON-MODE VOLTAGE RANGE

INCLUDES GROUND

■ LOW OUTPUT SATURATION VOLTAGE :

250mV TYP. (IO = 4mA)

■ DIFFERENTIAL INPUT VOLTAGE RANGE

EQUAL TO THE SUPPLY VOLTAGE

■ TTL, DTL, ECL, MOS, CMOS COMPATIBLE

OUTPUTS