General-purpose BA4558 / BA4560 / BA15218 / BA14741 / BA15532 / BA4510 family and high-reliability BA4558R / BA4560R / BA4580R / BA2115 family integrate two or four independent Op-Amps on a single chip. Especially, this series is suitable for any audio applications due to low noise and low distortion characteristics and are usable for other many applications by wide operating supply voltage range. BA4558R/BA4560R/BA4580R/BA2115 are high-reliability products with extended operating temperature range and high ESD tolerance.