BUY UPC4556C https://www.utsource.net/itm/p/11722006.html

The UPC4556C is a dual operational amplifier manufactured by NEC. It is a 8-pin DIP (dual in-line package) device. The UPC4556C is a dual high-gain, wide-bandwidth operational amplifier with high slew rate and low distortion. It features low noise, low power consumption, and low offset voltage. It has a wide operating voltage range of 4.5V to 18V. The UPC4556C is suitable for a variety of applications, including audio signal processing, instrumentation, and control systems. It can also be used in active filters, signal conditioning, and signal isolation. (For reference only)