OPA2134PA Audio Amplifier：Circuit, Pinout and Equivalent[FAQ+Video]

The OPA2134 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 OPA2134 has a wide output swing, within 1 V of the rails, allowing increased headroom and making it ideal for use in any audio circuit.

The OPA2134 SoundPlus™ audio operational amplifiers are easy to use and free from phase-inversion and the overload problems often found in common FET-input operational amplifiers. They can be operated from ±2.5-V to ±18-V power supplies. Input cascode circuitry provides excellent common-mode rejection and maintains a low input bias current over its wide input voltage range, minimizing distortion. OPA2134 series operational amplifiers are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions, including high load capacitance. The dual and quad versions feature completely independent circuitry for the lowest crosstalk and freedom from interaction, even when overdriven or overloaded.

Symbol

Footprint

3D Models

1. Superior Sound Quality

2. Ultra-Low Distortion: 0.00008%

3. Low Noise: 8 nV/√Hz

4. True FET-Input: IB = 5pA

5. High Speed:

  -Slew Rate: 20 V/µs

  -Bandwidth: 8 MHz

6. High Open-Loop Gain: 120 dB (600 Ω)

7. Wide Supply Range: ±2.5 V to ±18 V

• Professional Audio and Music

• Line Drivers

• Line Receivers

• Multimedia Audio

•Active Filters

• Preamplifiers

• Integrator

• Crossover Networks

Texas Instruments Incorporated (TI) is an American technology company headquartered in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume. The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and education technology products including calculators, microcontrollers, and multi-core processors.

The distortion produced by the OPA134 series of operational amplifiers is below the measurement limit of all known commercially-available equipment. However, a special test circuit can extend the measurement capabilities. Operational amplifier distortion can be considered an internal error source that can be referred to as the input.

Please check their parameters and pin configuration before replacing them in your circuit. So customers are responsible for determining the suitability of components for their purposes.