75mV magnification to 5V, magnification can be 66 times. Taking into account the common resistance values, the amplification factor is 64 times, and the in-phase proportional amplifier circuit is used, G=1 RF\/R1, R1=1 Kω, RF=63 kω. IRT EM series DC (voltage\/current) isolation amplifier Product Features IRT EM series isolation amplifier is a hybrid integrated circuit of magnetoelectric isolation. The IC integrates a multi-isolated DC\/DC conversion power supply and a set of magnetoelectric coupling analog signal isolation amplifiers on the same chip. It adopts a low-cost solution of magnetoelectric coupling. Mainly used for EMC (electromagnetic interference) without special requirements. Compared with photoelectric isolation products, anti-EMC (electromagnetic interference) ability is poor, special use should pay attention to increase electromagnetic interference suppression circuit or take shielding measures. The wide creepage distance on the input and output sides and the internal isolation measures enable the chip to reach 5000VDC insulation voltage. The IRT EM series products are very convenient to use, without zero and gain adjustment, without any elements such as external adjustment potentiometers, to realize the isolation and conversion function of industrial field signals. ★ Products have PCB board welding and standard DIN 35 rail card slot fixed two installation methods, rail installation can achieve analog signal one in two out, two in two out function. ★ 0-5V\/0-10V\/0-75mV\/0-2.5V\/0-1mA\/0-10mA\/0-20mA\/4-20mA and other international standard signal input\/output standard isolation signal. Accuracy grade: 0.1, 0.2; Extremely high linearity (nonlinearity < 0.1%), zero and gain adjustment free.