This part is a kind of semiconductor called AD744JN.

Function of this product has Precision/ 500 ns Settling BiFET Op Amp.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

a FEATURES AC PERFORMANCE 500 ns Settling to 0.01% for 10 V Step 1.5 ␮s Settling to 0.0025% for 10 V Step 75 V/ ␮s Slew Rate 0.0003% Total Harmonic Distortion (THD) 13 MHz Gain Bandwidth – Internal Compensation >200 MHz Gain Bandwidth (G = 1000) External Decompensation >1000 pF Capacitive Load Drive Capability with 10 V/ ␮s Slew Rate – External Compensation DC PERFORMANCE 0.5 mV max Offset Voltage (AD744B) 10 ␮ V/؇ C max Drift (AD744B) 250 V/mV min Open-Loop Gain (AD744B) Available in Plastic Mini-DIP, Plastic SOIC, Hermetic Cerdip, Hermetic Metal Can Packages and Chip Form Surface Mount (SOIC) Package Available in Tape and Reel in Accordance with EIA-481A Standard APPLICATIONS Output Buffers for 12-Bit, 14-Bit and 16-Bit DACs, ADC Buffers, Cable Drivers, Wideband Preamplifier [ ... ]

AD744JN PDF Datasheet Download