This part is a kind of semiconductor called AD8397.

Function of this product has Rail-to-Rail High Output Current Amplifier.

Manufacturers : Analog Devices

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FEATURES Dual operational amplifier Voltage feedback Wide supply range from 3 V to 24 V Rail-to-rail output Output swing to within 0.5 V of supply rails High linear output current 310 mA peak into 32 Ω on ±12 V supplies while maintaining −80 dBc SFDR Low noise 4.5 nV/√Hz voltage noise density at 100 kHz 1.5 pA/√Hz current noise density at 100 kHz High speed 69 MHz bandwidth (G = 1, −3 dB) 53 V/μs slew rate (RLOAD = 25 Ω) APPLICATIONS Twisted-pair line drivers Audio applications General-purpose ac applications GENERAL DESCRIPTION The AD8397 comprises two voltage feedback operational amplifiers capable of driving heavy loads with excellent linearity. The common-emitter, rail-to-rail output stage surpasses the output voltage capability of typical emitter-follower output stages and [ ... ]

AD8397 PDF Datasheet Download