This part is a kind of semiconductor called JRC4558.

Function of this product has Dual Operational Amplifier.

Manufacturers : ART CHIP

Image and pinout :

Some of the text within the PDF file :

DESCRIPTION The JRC4558 is a high performance monolithic dual operational amplifier. FEATURES z No frequency compensation required z No latch – up z Large common mode and differential voltage range z Parameter tracking over temperature range z Gain and phase match between amplifiers z Internally frequency compensated z Low noise input transistors z Pin to pin compatible with MC1458/LM358 BLOCK DIAGRAM (ONE SECTION ONLY) JRC4558 Dual Operational Amplifier SOP-8 DIP-8 PIN CONFIGURATION www.artschip.com 1-Output 1 2-Inverting input 1 3-Non-inverting input1 4-Vcc 1 5-Non-inverting input 2 6-Inverting input 2 7-Output 2 8-Vcc + ORDERING INFOR MATION Typical Application JRC4558 Dual Operational Amplifier MAXIMUM RATINGS PARAMETER Supply Voltage Differential Input Voltage Input Voltage [ ... ]

JRC4558 PDF Datasheet Download