This part is a kind of semiconductor called ISO1002.

Function of this product has Small Signal Amplifier.

Manufacturers : YUAN

Image and pinout :

Some of the text within the PDF file :

YUAN ISO 1002 Series Analog signal Isolation Amplifier ISO 1002 Series Analog Small Signal Isolation Amplifier ISO 1002 choose type: ISO- 1002 Input□-Power□-Output□ Input rated voltage（or current） U1：0-10mV U2：0-30mV U3：0-50mV U4: 0-75mV U5: 0-100mV U6:0~5V U7:0~10V U8: 0~100V A1：0-1mA A2:0~10mA Accessorial power supply P P1： DC24V P2： DC12V P3： DC5V P4： DC15V P5：Customer choose Output O1：4-20mA O2：0~20mA O4:0~5V O5:0~10V O6:1~5V O7: Customer choose Characteristic: ●0-10mV/0-20mV/0-50mV/0-75mV/0-100mV Small signal isolation amplification ● Efficiency grade：0.1, 0.2 ●Extremely high linearity in whole process （ nonlinearity < 0.1%） ● Power, signal: Input/output 3000VDC isolation ● Extension Power: 12VDC or 24VDC Single [ ... ]

ISO1002 PDF Datasheet Download