NJM8080 (marked 8080 945F JRC) by Japan Radio Company. Dual operational amplifier designed for high quality audio applications. Data sheet.

The NJM8080 features high resolution and crispy-clear high frequency sound, which can fully perform the digital sound source with loss-less. NJM8080 features low noise, wide gain-bandwidth, low distortion and high output current, and various reliabilities and conveniences are improved. (From the data sheet)