Product description:

 
Brand: Texas Instruments / TI Burr Brown
Origin: Thailand
Model: OPA604AP Low distortion and low noise FET input high performance audio operational amplifier
Package: DIP-8 
Voltage: ±4.5V~±24.0V
Distortion: 0.0003% 1KHz
Noise: 10nV/ √ ^Hz
Speed: 25V/μs
Bandwidth: 20MHz