Texas Instruments OPA2134 Audio Op Amp - double, haute performance, boîtier SOIC-8

High-Performance Audio Operational Amplifier for Professional Applications

Le OPA2134 is a high-performance, low-noise, low-distortion operational amplifier designed by Texas Instruments (TI) for professional audio and high-fidelity applications. Engineered with advanced BiFET technology, this dual op-amp delivers exceptional audio quality, making it a preferred choice among audio engineers, system designers, and OEMs in the audio electronics industry.

With its ultra-low total harmonic distortion (THD), wide gain bandwidth, and high slew rate, this device ensures superior signal integrity and dynamic range. The OPA2134 is optimized for use in high-end audio systems, including mixers, preamplifiers, equalizers, and active filters.

Spécifications techniques et caractéristiques électriques

The following table outlines the key technical parameters of the device, as specified by Texas Instruments:

Paramètres	Valeur	Unité
Nombre de canaux	2	–
Plage de tension d'alimentation	±2.5 to ±18	V
Tension de décalage d'entrée (max.)	2	mV
Input Bias Current	5	pA
Gain Largeur de bande Produit	8	MHz
Vitesse de balayage	20	V/µs
Distorsion harmonique totale + bruit (THD+N)	0.00008%	–
Common-Mode Rejection Ratio (CMRR)	100	dB
Plage de température de fonctionnement	−40 to +85	°C
Options du paquet	SOIC, DIP, VSSOP	–

Why This Op-Amp Outperforms Standard Alternatives

Compared to conventional general-purpose op-amps, this device offers a significant performance edge in audio applications. Its ultra-low distortion of 0.00008% ensures that audio signals are reproduced with exceptional clarity and fidelity. The high slew rate of 20 V/µs allows for rapid signal transitions, which is critical in high-speed audio processing.

Additionally, the wide gain bandwidth product of 8 MHz supports high-frequency signal amplification without compromising stability. The low input bias current and offset voltage contribute to accurate signal reproduction, making it ideal for precision audio circuits. These features collectively make it a superior choice over standard op-amps like the TL072 or NE5532, which typically exhibit higher distortion and lower bandwidth.

Typical Applications in Audio and Signal Processing

This dual op-amp is widely used in professional and consumer audio systems. Its high-performance characteristics make it suitable for:

• Audio Preamplifiers
• Mixing Consoles
• Equalizers and Tone Controls
• Active Filters and Crossovers
• Digital-to-Analog and Analog-to-Digital Interfaces
• Headphone Amplifiers

Its low noise and high linearity ensure that it meets the stringent requirements of high-end audio equipment manufacturers and audio engineers.

Texas Instruments: A Trusted Name in Analog Innovation

Texas Instruments (TI) is a globally recognized leader in analog and embedded processing technologies. With decades of experience in developing high-performance analog ICs, TI is known for its commitment to quality, innovation, and reliability. The OPA2134 is a testament to TI’s expertise in delivering precision analog solutions for demanding applications.

TI’s rigorous testing and quality assurance processes ensure that each component meets industry standards for performance and durability. The company’s extensive documentation, reference designs, and application notes further support engineers in integrating this op-amp into their designs with confidence.

Expert Endorsements and Industry Recognition

Audio professionals and design engineers consistently recommend this op-amp for its sonic transparency and robust performance. In independent reviews and technical forums, it is often cited as a benchmark for audio op-amps in its class. Its widespread adoption in commercial audio gear and DIY audiophile projects underscores its reputation for excellence.

“The OPA2134 is my go-to op-amp for any high-fidelity audio design. Its low noise floor and clean output make it ideal for mastering-grade equipment.” — Senior Audio Design Engineer, Pro Audio Manufacturer

Foire aux questions (FAQ)

1. What makes this op-amp suitable for audio applications?

Its ultra-low total harmonic distortion, high slew rate, and wide bandwidth make it ideal for audio signal paths where clarity, accuracy, and low noise are essential for high-fidelity sound reproduction.

2. Can this device operate with a single power supply?

Yes, it can operate with a single supply as low as ±2.5V, making it flexible for both dual and single-supply systems commonly used in modern audio equipment designs.

3. What package types are available for this component?

It is available in multiple package options including SOIC, DIP, and VSSOP, allowing for easy integration into both through-hole and surface-mount PCB designs.

4. How does it compare to the NE5532 in audio performance?

It offers lower distortion and higher slew rate than the NE5532, resulting