Audio Amplifiers

Audio Amplifiers

Our audio amplifiers deliver audiophile performance with proven analog and digital technology. Analog Devices offers a wide range of audio products, including industry-leading microphone preamps, microphone drivers, line drivers, and receivers. ADI’s audio amplifier products also include Class-A, Class-B, and Class-D offerings, along with a breadth of power ICs. Our Class-D amplifiers are among the lowest power and lowest distortion in the industry. Analog Devices amplifier products have been used in many high volume consumer products where the highest audio quality is expected. The lowest power consumption also enables this performance in many battery powered applications as well. The deep technical knowledge of our experts on audio amplifiers is also available to help you fine tune your design to meet your specifications.

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Audio Line Drivers and Receivers

Analog Devices audio line driver and receiver solutions feature differential-output buffer amplifiers and differential input buffer amplifiers to support a wide range of applications. By using low noise thermally matched thin film resistors and high slew rate amplifiers, these parts maintain the sonic quality of audio systems by eliminating power line hum, RF interference, voltage drops, and other externally generated noise commonly encountered with long audio cable runs. Applications involving this product portfolio include ADC drivers, high performance audio, sine/cosine encoders, and other professional and consumer uses.

Headphone Amplifiers

Analog Devices’ headphone amplifier ICs deliver industry-leading audio quality and performance. Our DirectDrive^® technology improves on conventional single-supply headphone amps with reduced solution size, cost savings, and enhanced audio quality. DirectDrive headphone amplifiers eliminate the need for a DC-blocking capacitor required by conventional headphone amps, resulting in reduced distortion, significantly less click-and-pop, better bass performance, and savings in solution size and cost. ADI’s Class H headphone amplifier ICs provide higher efficiency than the closest competitive Class G amplifiers. Our dual-mode DirectDrive II Class H headphone amplifiers save power by switching between two supply voltages. This technology renders a continuous signal without the glitches seen in Class G amplifiers.

Microphone Pre-Amp Audio Interfaces

Analog Devices mic pre-amp audio interfaces provide a high fidelity, high performance solution for audio products. Specifications for this family include ultralow 1.5 dB noise figures, 140 dB gain range, and high gain capability. Operating in an extended industrial temperature range of –40°C to +85°C, this portfolio of mic pre-amp audio interfaces supports many applications, including precision instrumentation, active filters, low noise amplifier front ends, surveillance systems, computerized voice recognition, and a variety of other industrial and consumer products. As the first choice for serious audio engineers, Analog Devices mic pre-amp audio interfaces can give your applications the performance needed to meet the most demanding specifications.

Speaker Amplifiers

Analog Devices’ speaker amplifier ICs combine superior sonic quality with technological breakthroughs, which simplify the design process, save space, extend battery life, and reduce system cost. Our speaker amp ICs offer output power levels from less than 1 W up to 50 W. ADI’s innovative packaging technology provides the smallest Class AB and Class D amplifiers available. Our IV sense boosted Class D speaker amplifiers employ our patented dynamic speaker management (DSM) technology, providing up to two times loudness improvement over standard Class D amps.