BUY BA15532 https://www.utsource.net/itm/p/880106.html
Dual High Slew Rate, Low Noise Operational Amplifier,
Description: The BA15532 is a high-performance, low-distortion, low-noise, dual operational amplifier. Features: * High-performance, low-distortion, low-noise dual operational amplifier * Low offset voltage: 0.3mV * High slew rate: 13V/μs * Low supply current: 0.8mA * Wide supply voltage range: ±2.5V to ±18V * High open-loop gain: 100dB Applications: * Audio equipment * Signal processing * Instrumentation * Medical equipment * Portable devices (For reference only)