The OPA4134UA is an audio amplifier IC with a SOP-14 surface-mount package. It is a high-quality, low-noise operational amplifier (op-amp) that is specifically designed for use in audio applications. The OPA4134UA has a wide gain bandwidth of 5.5 MHz and a high slew rate of 22 V/μs, making it suitable for use in a variety of audio circuits. It has a low noise floor of 3.5 nV/√Hz and a low distortion of 0.00009%, which makes it ideal for use in high-fidelity audio systems. The OPA4134UA is commonly used in professional audio equipment and high-end consumer audio products, such as audio preamplifiers, equalizers, and crossover networks.

The OPA134 series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. A true FET input stage is incorporated to provide superior sound quality and speed for exceptional audio performance. This, in combination with high output drive capability and excellent DC performance, allows for use in a wide variety of demanding applications. In addition, the OPA134 has a wide output swing, to within 1 V of the rails, allowing increased headroom and making it ideal for use in any audio circuit.