AD590产生的电流与绝对温度成正比，它可接收的工作电压为4V－30V，检测的温度范围为－55℃－＋150℃，它有非常好的线性输出性能，温度每增加1℃，其电流增加1uA。-AD590 produces a current proportional to absolute temperature, it can receive an operating voltage of 4V-30V, testing the temperature range-55 ℃-+150 ℃, it has a very good linear output performance, the temperature for every increase of 1 ℃, the current increases 1uA.