Overview
The OPA2604AU is a dual, FET-input operational amplifier designed by Texas Instruments for enhanced AC performance. This device is particularly suited for applications requiring low distortion, low noise, and wide bandwidth, making it ideal for high-quality audio and other dynamic performance-demanding applications. The OPA2604AU features advanced circuit techniques and special laser trimming to achieve very low harmonic distortion, resulting in exceptional sound quality and wide dynamic range.
Key Specifications
| Parameter | Condition | Min | Max | Units | |
|---|---|---|---|---|---|
| Input Offset Voltage | ±1 | ±5 | mV | ||
| Average Drift | ±8 | µV/°C | |||
| Power Supply Rejection | VS = ±5 to ±24V | 70 | 80 | dB | |
| Input Bias Current | VCM = 0V | 100 | pA | ||
| Input Offset Current | VCM = 0V | ±4 | pA | ||
| Input Voltage Noise | f = 1kHz | 11 | nV/√Hz | ||
| Gain-Bandwidth Product | 20 | MHz | |||
| Slew Rate | 25 | V/µs | |||
| Supply Voltage Range | ±4.5 | ±24 | V | ||
| Operating Temperature Range | –40 | 100 | °C |
Key Features
- Low distortion: 0.0003% at 1kHz.
- Low noise: 10nV/√Hz.
- High slew rate: 25V/µs.
- Wide gain-bandwidth product: 20MHz.
- Unity-gain stable.
- Wide supply range: ±4.5 to ±24V.
- Drives 600Ω loads.
Applications
- Professional audio equipment.
- PCM DAC I/V converter.
- Spectral analysis equipment.
- Active filters.
- Transducer amplifier.
- Data acquisition.
Q & A
- What is the OPA2604AU's input offset voltage?
The input offset voltage of the OPA2604AU is typically ±5 mV.
- What is the slew rate of the OPA2604AU?
The slew rate of the OPA2604AU is 25 V/µs.
- What is the gain-bandwidth product of the OPA2604AU?
The gain-bandwidth product of the OPA2604AU is 20 MHz.
- What is the supply voltage range for the OPA2604AU?
The supply voltage range for the OPA2604AU is ±4.5 to ±24 V.
- Is the OPA2604AU unity-gain stable?
Yes, the OPA2604AU is unity-gain stable.
- What are some common applications of the OPA2604AU?
Common applications include professional audio equipment, PCM DAC I/V converters, spectral analysis equipment, active filters, transducer amplifiers, and data acquisition.
- What is the operating temperature range of the OPA2604AU?
The operating temperature range of the OPA2604AU is –40°C to 100°C.
- How much current does the OPA2604AU draw from the supply?
The supply current for the OPA2604AU is typically around 35 mA per channel.
- What is the package type of the OPA2604AU?
The OPA2604AU is available in an 8-SOIC package.
- How does the OPA2604AU handle noise and high impedance power supply lines?
The OPA2604AU may require decoupling capacitors close to the device pins to handle noisy or high impedance power supply lines. Typically, 1µF tantalum capacitors are adequate.
