This part is a kind of semiconductor called LM358N.

Function of this product has LOW POWER DUAL OPERATIONAL AMPLIFIERS.

Manufacturers : STMicroelectronics

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Some of the text within the PDF file :

LM158, LM258, LM358 Low-power dual operational amplifiers Datasheet - production data Features Frequency compensation implemented internally Large DC voltage gain: 100 dB Wide bandwidth (unity gain): 1.1 MHz (temperature compensated) Very low supply current per channel essentially independent of supply voltage Low input bias current: 20 nA (temperature compensated) Low input offset voltage: 2 mV Low input offset current: 2 nA Input common-mode voltage range includes negative rails Differential input voltage range equal to the power supply voltage Large output voltage swing 0 V to (VCC+ - 1.5 V) Related products See LM158W for enhanced ESD ratings Description These circuits consist of two independent, highgain, internally frequency-compensated op amps, specifically designed to operate f [ ... ]

LM358N PDF Datasheet Download