Overview
The OPA1656ID is a high-performance, dual-channel operational amplifier (op-amp) manufactured by Texas Instruments. Designed for audio and industrial applications, this op-amp is part of the Burr-Brown™ SoundPlus™ series, known for its exceptional signal fidelity and low noise performance. The OPA1656ID is ideal for applications requiring ultra-low noise and distortion, making it a preferred choice for professional audio equipment, precision instrumentation, and industrial control systems. Its FET input architecture ensures minimal noise and high accuracy, catering to engineers and designers focused on high-quality signal processing.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Channels | 2 | - | Dual-channel design |
| Total Supply Voltage (Min) | 4.5 | V | Single or dual supply |
| Total Supply Voltage (Max) | 36 | V | Single or dual supply |
| GBW (Typ) | 53 | MHz | Gain bandwidth product |
| Slew Rate (Typ) | 24 | V/µs | High-speed response |
| Input Voltage Noise (Typ) | 2.9 | nV/√Hz | At 10 kHz |
| Input Current Noise (Typ) | 6 | fA/√Hz | At 1 kHz |
| THD+N @ 1 kHz (Typ) | 0.000029 | % | Ultra-low distortion |
| Operating Temperature Range | -40 to 125 | °C | Wide temperature range |
| Output Current (Typ) | 100 | mA | High output drive capability |
Key Features
- Ultra-low noise: 2.9nV/√Hz voltage noise and 6fA/√Hz current noise for high precision.
- Low distortion: THD+N of 0.000029% at 1 kHz ensures pristine audio quality.
- High output current: 100mA drive capability for demanding loads.
- Wide supply voltage range: Operates from ±2.25V to ±18V or 4.5V to 36V.
- Rail-to-rail output: Maximizes dynamic range in signal processing.
- Low quiescent current: 3.9mA per channel for energy-efficient designs.
Applications
The OPA1656ID is widely used in professional audio equipment, such as mixers, amplifiers, and audio interfaces, where maintaining signal fidelity is critical. It is also suitable for precision instrumentation, including data acquisition systems and medical devices, due to its low noise and high accuracy. In industrial applications, the OPA1656ID is employed in control systems, sensors, and signal conditioning circuits, benefiting from its robust performance and wide operating temperature range.
Q & A
1. What is the input voltage range of the OPA1656ID?
The OPA1656ID supports a wide input voltage range from ±2.25V to ±18V or 4.5V to 36V.
2. What is the typical voltage noise of the OPA1656ID?
The typical voltage noise is 2.9nV/√Hz at 10 kHz.
3. Can the OPA1656ID operate in single-supply configurations?
Yes, it can operate with a single supply ranging from 4.5V to 36V.
4. What is the maximum output current of the OPA1656ID?
The maximum output current is 100mA.
5. What is the typical THD+N performance of the OPA1656ID?
The typical THD+N is 0.000029% at 1 kHz.
6. Is the OPA1656ID suitable for audio applications?
Yes, it is specifically designed for high-fidelity audio applications.
7. What is the operating temperature range of the OPA1656ID?
It operates from -40°C to 125°C.
8. What is the slew rate of the OPA1656ID?
The slew rate is 24V/µs.
9. Does the OPA1656ID have rail-to-rail output?
Yes, it features rail-to-rail output for maximum dynamic range.
10. What is the quiescent current per channel?
The quiescent current is 3.9mA per channel.
