LM393

 Comparator, Dual, Low Offset Voltage

制造商:ON

产品信息

LM393 是双电压比较器集成电路。

输出负载电阻能衔接在可允许电源电压范围内的任何电源电压上,不受 Vcc端电压值的限制.此输出能作为一个简单的对地SPS开路(当不用负载电阻没被运用),输出部分的陷电流被可能得到的驱动和器件的β值所限制.当达到极限电流(16mA)时,输出晶体管将退出而且输出电压将很快上升。


The LM393 series are dual independent precision voltage comparators capable of single or split supply operation. These devices are designed to permit a common mode range-to-ground level with single supply operation. Input offset voltage specifications as low as 2.0 mV make this device an excellent selection for many applications in consumer automotive and industrial electronics.

  • Wide Single-Supply Range: 2.0 Vdc to 36 Vdc

  • Split-Supply Range: +/-1.0 Vdc to +/-18 Vdc

  • Very Low Current Drain Independent of Supply Voltage: 0.4 mA

  • Low Input Bias Current: 25 nA

  • Low Input Offset Current: 5.0 nA

  • Low Input Offset Voltage: 2.0 mV (max) LM393A 5.0 mV (max) LM293/393

  • Input Common Mode Range to Ground Level

  • Differential Input Voltage Range Equal to Power Supply Voltage

  • Output Voltage Compatible with DTL, ECL, TTL, MOS, and CMOS Logic Levels

  • ESD Clamps on the Inputs Increase the Ruggedness of the Device without Affecting Performance

优势特点

该电路的特点如下:

工作温度范围:0°C -- +70°C

SVHC(高度关注物质):No SVHC (18-Jun-2010)

器件标号:393

工作电源电压范围宽,单电源、双电源均可工作,单电源: 2~ 36V, 双电源:±1~±18V;

消耗电流小, ICC=0.4mA;

输入失调电压小, VIO=±2mV;

共模输入电压范围宽, VIC=0~VCC-1.5V;

输出与TTL,DTL,MOS,CMOS 等兼容;

输出可以用开路集电极连接“或”门;

表面安装器件:表面安装


规格参数

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电路图、引脚图和封装图

    LM393电路图

      LM393引脚图

        LM393封装图

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        技术资料

        应用案例