This part is a kind of semiconductor called AD8274.

Function of this product has Precision Difference Amplifier.

Manufacturers : Analog Devices

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Some of the text within the PDF file :

FEATURES Very low distortion 0.00025% THD + N (20 kHz) 0.0015% THD + N (100 kHz) Drives 600 Ω loads Excellent gain accuracy 0.03% maximum gain error 2 ppm/°C maximum gain drift Gain of ½ or 2 AC specifications 20 V/μs minimum slew rate 800 ns to 0.01% settling time High accuracy dc performance 83 dB minimum CMRR 700 μV maximum offset voltage 8-lead SOIC and MSOP packages Supply current: 2.6 mA maximum Supply range: ±2.5 V to ±18 V APPLICATIONS ADC driver High performance audio Instrumentation amplifier building blocks Level translators Automatic test equipment Sine/cosine encoders GENERAL DESCRIPTION The AD8274 is a difference amplifier that delivers excellent ac and dc performance. Built on Analog Devices, Inc., proprietary iPolar® process and laser-trimmed resistors, AD8274 achie [ ... ]

AD8274 PDF Datasheet Download