Overview
The DRV135UA/2K5G4, produced by Texas Instruments, is a high-performance audio balanced line driver designed for demanding audio applications. This device is part of the DRV13x series, which includes the DRV134 and DRV135 models. The DRV135 is particularly noted for its compact SO-8 surface-mount package, making it ideal for space-constrained designs. It is characterized by its low differential-mode output impedance and high common-mode output impedance, ensuring excellent signal integrity and minimal distortion.
The DRV135 is optimized for use in balanced-pair audio systems, offering low total harmonic distortion plus noise (THD+N), a high slew rate, and a wide output voltage swing. These features make it suitable for a variety of applications, including professional audio equipment, telecommunications systems, and industrial instrumentation.
Key Specifications
| Parameter | Min | |||
|---|---|---|---|---|
| Supply Voltage Range | ±4.5 | ±18 | V | |
| Input Voltage Range | V– | V+ | V | |
| Operating Temperature | –40 | 85 | °C | |
| Storage Temperature Range | –55 | 125 | °C | |
| Junction Temperature | 150 | °C | ||
| Quiescent Current | –5.5 | ±5.2 | 5.5 | mA |
| Input Impedance | 10 | kΩ | ||
| Differential Gain | 5.8 | 6 | dB | |
| Output Voltage Swing (No Load) | (V+) – 3 | (V+) – 2.5 | V | |
| Output Voltage Swing (No Load) | (V–) + 2 | (V–) + 1.5 | V | |
| Load Capacitance, Stable Operation | 1 | µF | ||
| Short-Circuit Current | ±85 | mA | ||
| Small-Signal Bandwidth | 1.5 | MHz | ||
| Slew Rate | 15 | V/µs | ||
| Settling Time: 0.01% | 2.5 | µs | ||
| Overload Recovery | 3 | µs |
Key Features
- Wide Supply Range: Operates from ±4.5 V to ±18 V, making it versatile for various power supply configurations.
- Low Quiescent Current: Typically ±5.2 mA, which is beneficial for power-efficient designs.
- High Slew Rate and Bandwidth: 15 V/µs slew rate and 1.5 MHz small-signal bandwidth ensure high fidelity and fast signal response.
- Low Distortion and Noise: Excellent THD+N performance (0.001% at 1 kHz) and a low noise floor (–98 dBu) for high-quality audio transmission.
- High Output Drive Capability: Capable of driving large capacitive loads associated with long audio cables.
- Precision and Stability: Laser-trimmed on-chip resistors for accurate gain and optimum output common-mode rejection.
- Compact Packaging: Available in an SO-8 surface-mount package, ideal for space-constrained designs.
Applications
- Audio Differential Line Drivers: Ideal for professional audio equipment and balanced-pair audio systems.
- Audio Mix Consoles: Used in mixing and mastering consoles for high-quality audio signal transmission.
- Distribution Amplifiers: Suitable for distributing audio signals without degradation.
- Graphic and Parametric Equalizers: Enhances audio signal processing in equalization applications.
- Dynamic Range Processors: Used in compressors, limiters, and expanders for dynamic range control.
- Digital Effects Processors: Compatible with digital audio processing systems.
- Telecom Systems: Used in telecommunications equipment for high-quality audio transmission.
- Hi-Fi Equipment: Suitable for high-fidelity audio systems and home audio equipment.
- Industrial Instrumentation: Used in industrial control and measurement systems requiring high-quality audio signals.
Q & A
- What is the supply voltage range of the DRV135?
The DRV135 operates from a supply voltage range of ±4.5 V to ±18 V.
- What is the typical quiescent current of the DRV135?
The typical quiescent current of the DRV135 is ±5.2 mA.
- What is the slew rate of the DRV135?
The DRV135 has a slew rate of 15 V/µs.
- What is the small-signal bandwidth of the DRV135?
The small-signal bandwidth of the DRV135 is 1.5 MHz.
- How does the DRV135 handle large capacitive loads?
The DRV135 is capable of driving large capacitive loads associated with long audio cables due to its high output drive capability.
- What are the key applications of the DRV135?
The DRV135 is used in audio differential line drivers, audio mix consoles, distribution amplifiers, graphic and parametric equalizers, dynamic range processors, digital effects processors, telecom systems, Hi-Fi equipment, and industrial instrumentation.
- What is the operating temperature range of the DRV135?
The DRV135 operates over an extended industrial temperature range of –40°C to +85°C.
- What is the storage temperature range of the DRV135?
The storage temperature range of the DRV135 is –55°C to +125°C.
- How does the DRV135 ensure precision and stability in its output?
The DRV135 uses laser-trimmed on-chip resistors to ensure accurate gain and optimum output common-mode rejection.
- What package types are available for the DRV135?
The DRV135 is available in an SO-8 surface-mount package.
