Overview
The OPA4134UA, manufactured by Texas Instruments, is a high-performance, low-noise operational amplifier designed for audio applications. This quad-channel amplifier is part of the SoundPlus™ series, known for its exceptional audio quality and dynamic performance. It features true FET input stages, offering ultra-low distortion and noise, making it ideal for high-fidelity audio systems. The OPA4134UA operates over a wide supply voltage range (±2.5V to ±18V) and is available in a 14-pin SOIC package, suitable for surface-mount applications. Its robust design ensures stable performance across a temperature range of -40°C to 85°C, making it a versatile choice for both consumer and professional audio equipment.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Channels | 4 | - | Quad-channel |
| Supply Voltage | ±2.5 to ±18 | V | Dual supply |
| Input Bias Current | 5 | pA | FET input |
| Noise | 8 | nV/√Hz | Low noise |
| Distortion | 0.00008 | % | Ultra-low |
| Slew Rate | 20 | V/µs | High speed |
| Bandwidth | 8 | MHz | Wide bandwidth |
| Open Loop Gain | 120 | dB | High gain |
| Operating Temperature | -40 to 85 | °C | Wide range |
| Package | SOIC-14 | - | Surface mount |
Key Features
- Ultra-low distortion and noise for high-fidelity audio.
- True FET input stage with low input bias current.
- High slew rate and wide bandwidth for dynamic performance.
- Wide supply voltage range for versatile applications.
- Stable operation across a broad temperature range.
- Compact SOIC-14 package for space-efficient designs.
Applications
The OPA4134UA is widely used in audio applications, including professional audio equipment, high-fidelity amplifiers, and multimedia systems. Its low noise and distortion make it suitable for precision audio signal processing. Additionally, it is employed in communication systems, medical devices, and instrumentation where high-performance amplification is required. The amplifier's robust design and wide operating range also make it ideal for industrial and automotive audio systems.
Q & A
What is the supply voltage range for the OPA4134UA?
The OPA4134UA operates over a supply voltage range of ±2.5V to ±18V.
What is the input bias current of the OPA4134UA?
The input bias current is 5 pA, thanks to its true FET input stage.
What is the noise level of the OPA4134UA?
The noise level is 8 nV/√Hz, ensuring high-fidelity audio performance.
What is the distortion level of the OPA4134UA?
The distortion level is 0.00008%, making it ideal for high-precision audio applications.
What is the slew rate of the OPA4134UA?
The slew rate is 20 V/µs, providing high-speed signal processing.
What is the bandwidth of the OPA4134UA?
The bandwidth is 8 MHz, suitable for wideband audio applications.
What is the open loop gain of the OPA4134UA?
The open loop gain is 120 dB, ensuring high amplification accuracy.
What is the operating temperature range of the OPA4134UA?
The operating temperature range is -40°C to 85°C, making it suitable for various environments.
What package does the OPA4134UA come in?
The OPA4134UA is available in a 14-pin SOIC package.
What are the typical applications of the OPA4134UA?
Typical applications include professional audio equipment, communication systems, medical devices, and industrial audio systems.
