Overview
The OPA2604AUE4 is a dual, FET-input operational amplifier designed by Texas Instruments for enhanced AC performance. This component is part of the OPA2604 series, known for its very low distortion, low noise, and wide bandwidth, making it superior in high-quality audio and other applications requiring excellent dynamic performance. The OPA2604AUE4 features new circuit techniques and special laser trimming of dynamic circuit performance, resulting in an operational amplifier with exceptional sound quality and wide dynamic range, even with high source impedance.
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 | ||
| High Slew Rate | 25 | V/µs | |||
| Gain-Bandwidth | 20 | MHz | |||
| Supply Voltage Range | ±4.5 | ±24 | V | ||
| Operating Temperature | –25 | 85 | °C |
Key Features
- Low Distortion: 0.0003% at 1kHz
- Low Noise: 10 nV/√Hz
- High Slew Rate: 25 V/µs
- Wide Gain-Bandwidth: 20 MHz
- Unity-Gain Stable
- Wide Supply Range: VS = ±4.5 to ±24 V
- Drives 600 Ω Loads
- Laser-trimmed offset voltage to minimize the need for interstage coupling capacitors
- Available in 8-pin plastic mini-DIP and SO-8 surface-mount packages
Applications
- Professional Audio Equipment
- PCM DAC I/V Converters
- Spectral Analysis Equipment
- Active Filters
- Transducer Amplifiers
- Data Acquisition
Q & A
- What is the primary application of the OPA2604AUE4?
The OPA2604AUE4 is primarily used in professional audio equipment, PCM DAC I/V converters, spectral analysis equipment, active filters, transducer amplifiers, and data acquisition systems.
- What are the key features of the OPA2604AUE4?
The key features include low distortion, low noise, high slew rate, wide gain-bandwidth, unity-gain stability, and a wide supply voltage range.
- What is the input offset voltage of the OPA2604AUE4?
The input offset voltage is typically ±5 mV.
- What is the slew rate of the OPA2604AUE4?
The slew rate is 25 V/µs.
- What is the gain-bandwidth product of the OPA2604AUE4?
The gain-bandwidth product is 20 MHz.
- What is the operating temperature range of the OPA2604AUE4?
The operating temperature range is –25°C to 85°C.
- What are the available package types for the OPA2604AUE4?
The OPA2604AUE4 is available in 8-pin plastic mini-DIP and SO-8 surface-mount packages.
- How does the OPA2604AUE4 handle high source impedance?
The low-noise FET input provides a wide dynamic range, even with high source impedance.
- What is the power supply rejection ratio (PSRR) of the OPA2604AUE4?
The PSRR is typically 80 dB.
- How can the distortion of the OPA2604AUE4 be measured?
A special test circuit can be used to extend the measurement capabilities of the distortion, making it 101 times greater than normally produced by the op amp.
