OPA1656 SoundPlus™, Burr-Brown™ Audio Op Amp

Texas Instruments' OPA1656 Burr-Brown op amp is designed for audio and industrial applications where maintaining signal fidelity is crucial. The FET-input architecture achieves a low 2.9 nV/√Hz voltage noise density and 6 fA/√Hz current noise density, allowing for ultra-low-noise performance in a wide variety of circuits. The high bandwidth and high open-loop-gain design of the OPA1656 provides a low distortion of 0.000035% (-129 dB) at 20 kHz and improves audio signal fidelity across the full audio bandwidth. This device features excellent output current drive capability, offering rail-to-rail output swing to within 250 mV of the power supplies with a 2 kΩ load, and can deliver 100 mA of output current.

The OPA1656 operates over an ultra-wide supply range of ±2.25 V to ±18 V (4.5 V to 36 V) on 3.9 mA of supply current to accommodate the power supply constraints of many types of audio products. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package.