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OP275 from PMI,Analog Devices

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OP275

Manufacturer: PMI

Dual Bipolar/JFET, Audio Operational Amplifier

Partnumber Manufacturer Quantity Availability
OP275 PMI 200 In Stock

Description and Introduction

Dual Bipolar/JFET, Audio Operational Amplifier # Introduction to the OP275 Operational Amplifier  

The OP275 is a high-performance operational amplifier (op-amp) designed for precision audio and signal processing applications. Known for its low noise and distortion, the OP275 combines the sonic characteristics of bipolar and JFET input stages, making it a versatile choice for professional audio equipment, medical instrumentation, and high-fidelity systems.  

Featuring a wide bandwidth and fast slew rate, the OP275 ensures accurate signal reproduction with minimal phase distortion. Its low total harmonic distortion (THD) and high common-mode rejection ratio (CMRR) make it ideal for applications requiring high dynamic range and signal integrity. Additionally, the device operates over a broad supply voltage range, accommodating both single and dual power supplies.  

Engineers favor the OP275 for its robust performance in demanding environments, including active filters, analog-to-digital converters (ADCs), and transducer amplifiers. Its balanced architecture reduces crossover distortion, enhancing linearity in both small and large signal conditions.  

With its combination of audio-grade performance and general-purpose versatility, the OP275 remains a preferred choice for designers seeking reliable, high-quality amplification in critical analog circuits.

Application Scenarios & Design Considerations

Dual Bipolar/JFET, Audio Operational Amplifier

Alternative Part Number

  • AD825 --: High-speed JFET-input op-amp from Analog Devices (which acquired PMI), offering similar audio-grade performance and a well-known drop-in upgrade path for OP275 designs.
  • TL072 --: Widely available low-noise JFET-input dual op-amp with comparable pinout and supply range, commonly used as a cost-effective substitute in audio circuits.
  • NE5532 --: Industry-standard low-noise dual bipolar op-amp with similar pinout and audio performance, broadly stocked and often used where OP275 is unavailable.

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