This part is a kind of semiconductor called BA15532N.

Function of this product has Dual high slew rate/ low noise operational amplifier.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

Standard ICs Dual high slew rate, low noise operational amplifier BA15532 / BA15532F / BA15532N The BA15532, BA15532F, and BA15532N are low-noise dual operational amplifiers designed especially for applications involving high-grade audio equipment. Since they feature low noise, a wide band width, and high power output, these products can also be used in measuring instruments and control circuits. The following packages are available : 8-pin DIP (BA15532), 8-pin SOP (BA15532F), and 8-pin SIP (BA15532N). Features • 1) High output current capacity. 2) High slew rate. 3) Low noise. •Block diagram BA15532 / BA15532F BA15532N OUT1 1 8 VCC – IN1 2 – + IN1 3 1ch 7 OUT2 1ch + + 2ch + – + 2ch – – 6 – IN2 1 2 3 4 5 6 7 OUT2 VEE 4 5 + IN2 OUT1 – IN1 + IN1 + [ ... ]

BA15532N PDF Datasheet Download