The LMx39x and the LM2901xx devices consist of four independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies also is possible, as long as the difference between the two supplies is 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships.
The LM139 and LM139A devices are characterized for operation over the full military temperature range of –55°C to 125°C. The LM239 and LM239A devices are characterized for operation from –25°C to 125°C. The LM339 and LM339A devices are characterized for operation from 0°C to 70°C. The LM2901, LM2901AV, and LM2901V devices are characterized for operation from –40°C to 125°C.
德克萨斯仪器lm239adrendent电压比较器被设计为从单电源工作在很宽的电压范围。从双电源的操作也是可能的,只要两个电源之间的差异是2 V至36 V,和VCC是至少1.5 V更积极的输入共模电压。电流消耗与电源电压无关。输出可以连接到其他集电极开路输出实现有线和关系。
LM139和lm139a器件的特点是运行在–55°C完整的军用温度范围为125°C. 239和lm239a器件的特点是从–25°C至125 C°LM339和lm339a设备操作的特点是操作从0°C 70°C. lm2901,lm2901av,和lm2901v器件的特点是从–40°C 125°C.操作
LM239ADRE4产品详细规格