**The OP275GSZ: Analog Devices' High-Performance Audio Operational Amplifier**

In the world of high-fidelity audio and precision signal processing, the choice of operational amplifier is critical. Among the numerous options available, **the OP275GSZ from Analog Devices stands out as a premier solution** engineered specifically for demanding audio applications. Combining the desirable sonic characteristics of bipolar and JFET transistor technologies, this op-amp delivers a unique blend of low noise, high speed, and exceptional audio quality.

A key feature of the OP275GSZ is its **proprietary BIFET (Bipolar-JFET) architecture**. This design leverages the strengths of both worlds: the low input bias noise and precision of bipolar transistors with the superior slew rate and high input impedance of JFETs. The result is an amplifier that offers **ultra-low Total Harmonic Distortion plus Noise (THD+N)**, typically below 0.0009% at 1 kHz, which is inaudible and crucial for preserving the integrity of the original audio signal. Furthermore, its high slew rate of 22 V/µs ensures that the amplifier can accurately handle the rapid transient signals common in music without introducing distortion, making the audio output crisp and dynamic.

The device is also designed for versatility and robustness. It operates over a wide supply voltage range from ±5V to ±22V, providing designers with flexibility in both consumer and professional audio equipment. Its **low noise floor of 6 nV/√Hz** makes it an excellent choice for preamplifiers, mixing consoles, and high-end audio converters where extracting every detail from a weak input signal is paramount. Additionally, the OP275GSZ is stable with capacitive loads, a common trait in audio systems, which simplifies circuit design without the need for additional compensation components.

Beyond its technical specifications, the OP275GSZ is renowned for its **"audiophile-grade" performance**. Many designers subjectively report that it delivers a warm, detailed, and musically engaging sound signature, a quality that is often sought after in high-performance audio gear. Whether used in a phono preamp, a digital-to-analog converter (DAC) output stage, or an active filter, it consistently enhances the overall listening experience.

**ICGOODFIND Summary**: The Analog Devices OP275GSZ is a standout high-performance audio operational amplifier that masterfully blends JFET and bipolar technologies. It is distinguished by its exceptionally low distortion, high slew rate, and low noise, making it an ideal and versatile core component for premium audio applications where signal fidelity is non-negotiable.

**Keywords**: High-Fidelity Audio, Low Distortion (THD+N), BIFET Architecture, Slew Rate, Low Noise