product description:

• Transparent, very good resolution, wide sound field, better than OPA604
• OPA1611 (single channel) bipolar input operational amplifier can achieve very low noise density at 1kHz
• (1.1nV/√Hz) and ultra-low distortion (0.000015%). OPA1611 and OPA1612 can provide rail-to-rail output with a swing range of 600mV from the power rail under a load of 2-k?6?8, which helps to maximize the dynamic range.

• These devices support a wide supply voltage range of ±2.25V to ±18V, with a supply current of only 3.6mA per channel. The OPA1611 operational amplifier has stable unity gain and can maintain excellent dynamic performance under a wide range of load conditions.

Can replace OPA604 OPA627 NE5534
Main signal-to-noise ratio comparison:
OPA1611: Low distortion: 0.000015% (1kHz), low noise: 1.1nV/Hz
OPA604: Low distortion: 0.0003% (1kHz), low noise: 10nV/Hz