Intelligent signal isolator

The invention provides an intelligent signal isolator, belongs to the technical field of signal isolators and aims at providing a signal isolator digitally adjustable in gain and zero and high in reliability and transmission rate. According to the adopted technical scheme, the intelligent signal isolator comprises a first CPU module, a second CPU module, an A/D conversion module, a D/A conversion module, a transformer isolation communication module and a power supply module, wherein a signal input port of the first CPU module is connected with a signal output port of the A/D conversion module, a signal output port of the first CPU module is connected with the signal input end of the transformer isolation communication module, the signal output end of the transformer isolation communication module is connected with a signal input port of the second CPU module, and a signal output port of the second CPU module is connected with a signal input port of the D/A conversion module. The intelligent signal isolator is