Overview
The OPA2134PA is a SoundPlus™ audio operational amplifier produced by Texas Instruments. It is part of the OPAx134 series, which includes ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. The OPA2134PA features a true FET input stage, providing excellent sound quality and speed for exceptional audio performance. It is designed to operate from ±2.5V to ±18V power supplies and is free from phase-inversion and overload problems common in FET-input operational amplifiers. The device is unity-gain stable and offers excellent dynamic behavior over a wide range of load conditions, including high load capacitance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | PDIP (P) | - |
| Pins | 8 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | ±2.5V to ±18V | V |
| Distortion | 0.00008% | - |
| Noise | 8 nV/√Hz | - |
| Input Bias Current | 5 pA | - |
| Slew Rate | 20 V/µs | - |
| Bandwidth | 8 MHz | - |
| Open-Loop Gain | 120 dB (2kΩ) | - |
Key Features
- Superior Sound Quality: Excellent sound quality due to ultra-low distortion and low noise.
- Ultra-Low Distortion: 0.00008% distortion, making it ideal for high-fidelity audio applications.
- Low Noise: 8 nV/√Hz noise level, ensuring minimal noise interference.
- True FET-Input: Input bias current of 5 pA, providing high input impedance and low input bias current.
- High Speed: Slew rate of 20 V/µs and bandwidth of 8 MHz, suitable for high-speed audio applications.
- High Open-Loop Gain: 120 dB (2kΩ), ensuring high gain accuracy.
- Wide Supply Range: Operates from ±2.5V to ±18V power supplies, offering flexibility in design.
- Unity-Gain Stable: Stable operation even at unity gain, with excellent dynamic behavior over various load conditions).
Applications
- Professional Audio and Music: Ideal for high-fidelity audio systems and professional music equipment).
- Line Drivers and Receivers: Suitable for driving and receiving audio signals over long distances).
- Multimedia Audio: Used in multimedia systems requiring high-quality audio performance).
- Active Filters: Can be used in active filter circuits due to its high bandwidth and low distortion).
- Preamplifiers and Integrators: Suitable for preamplification and integration tasks in audio circuits).
- Crossover Networks: Used in crossover networks for speaker systems to ensure clear and distortion-free audio).
Q & A
- What is the OPA2134PA?
The OPA2134PA is a SoundPlus™ audio operational amplifier produced by Texas Instruments, known for its ultra-low distortion and low noise, making it suitable for high-fidelity audio applications).
- What is the distortion level of the OPA2134PA?
The OPA2134PA has an ultra-low distortion level of 0.00008%).
- What is the noise level of the OPA2134PA?
The noise level of the OPA2134PA is 8 nV/√Hz).
- What is the input bias current of the OPA2134PA?
The input bias current of the OPA2134PA is 5 pA).
- What is the slew rate and bandwidth of the OPA2134PA?
The slew rate is 20 V/µs and the bandwidth is 8 MHz).
- What is the open-loop gain of the OPA2134PA?
The open-loop gain is 120 dB (2kΩ)).
- What is the operating temperature range of the OPA2134PA?
The operating temperature range is -40°C to 85°C).
- What are the typical applications of the OPA2134PA?
Typical applications include professional audio and music, line drivers and receivers, multimedia audio, active filters, preamplifiers, integrators, and crossover networks).
- Is the OPA2134PA unity-gain stable?
Yes, the OPA2134PA is unity-gain stable and provides excellent dynamic behavior over various load conditions).
- What are some substitutes for the OPA2134PA?
Some substitutes include MUSES02, LT1113CN8#PBF, NJM5532D, and others from different manufacturers.
