TINA下绘制的 工业4-20mA 传感器信号采集用的隔离放大器。能将4-20mA的电流信号转换为0~3V的电压信号，方便设备采样。-TINA drawn under the Industrial 4-20mA sensor signal acquisition using isolation amplifiers. Can 4-20mA current signal into a 0 ~ 3V voltage signal to facilitate the sampling equipment.