此芯片可以为单片机供电,带10,5,2.5,1.3v四个基准源(15mA),可以进行模拟信号放大,da出来可以放大成(1-5V),4-20mA等信号-The microcontroller chip can be powered with 10,5,2.5,1.3 v 4 reference source (15mA), can be an analog signal amplification, da come out can zoom into the (1-5V) ,4-20mA sign