BUY HA1388 https://www.utsource.net/itm/p/975519.html
Single Audio Amplifier
The HA1388 is a 12-pin ZIP-12 integrated circuit (IC) manufactured by Hitachi. It is a dual operational amplifier with a low power consumption of only 0.6mA. The HA1388 features a wide operating supply voltage range of 4.5V to 18V, a high gain bandwidth of 1.5MHz, and a low distortion rate of 0.002%. It also has a low offset voltage of 0.3mV and a low noise voltage of 5.5μV. The HA1388 is suitable for a variety of applications, including audio pre-amplifiers, signal conditioning, active filters, and instrumentation amplifiers. It is also suitable for use in medical equipment, communications systems, and consumer electronics. (For reference only)