This part is a kind of semiconductor called AD8513.
Function of this product has Wide Bandwidth JFET Operational Amplifiers.
Manufacturers : Analog Devices
Image and pinout :

Some of the text within the PDF file :
Precision, Very Low Noise, Low Input Bias Current, Wide Bandwidth JFET Operational Amplifiers AD8510/AD8512/AD8513 FEATURES Fast settling time: 500 ns to 0.1% Low offset voltage: 400 μV maximum Low TCVOS: 1 μV/°C typical Low input bias current: 25 pA typical at VS = ±15 V Dual-supply operation: ±5 V to ±15 V Low noise: 8 nV/√Hz typical at f = 1 kHz Low distortion: 0.0005% No phase reversal Unity gain stable APPLICATIONS Instrumentation Multipole filters Precision current measurement Photodiode amplifiers Sensors Audio PIN CONFIGURATIONS NULL 1 8 NC –IN 2 AD8510 7 V+ +IN 3 TOP VIEW 6 OUT (Not to Scale) V– 4 5 NULL 02729-003 NC = NO CONNECT Figure 1. 8-Lead MSOP (RM Suffix) NULL 1 8 NC –IN 2 AD8510 7 V+ +IN 3 TOP VIEW 6 OUT (Not to Scale) V– 4 5 NULL 02729- [ ... ]
AD8513 PDF Datasheet Download
