Overview
The OPA1678IDGKT is a high-performance, low-noise operational amplifier (op-amp) produced by Texas Instruments. Designed for precision audio and signal processing applications, this op-amp combines exceptional audio quality with low distortion and noise, making it ideal for professional audio equipment, medical instrumentation, and industrial control systems. Its compact VSSOP-8 package and low power consumption further enhance its appeal for space-constrained and power-sensitive designs. The OPA1678IDGKT stands out in the market for its ability to deliver high fidelity and reliability in demanding environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | ±2.25 to ±18 | V | Dual Supply |
| Input Voltage Noise | 5.1 | nV/√Hz | @ 1 kHz |
| Gain Bandwidth Product | 10 | MHz | Typical |
| Slew Rate | 7 | V/µs | Typical |
| Quiescent Current | 1.7 | mA | Per Amplifier |
| Operating Temperature | -40 to +125 | °C | |
| Package | VSSOP-8 | DGK Package | |
| Common Mode Rejection Ratio | 120 | dB | Typical |
| Input Offset Voltage | 0.5 | mV | Maximum |
| THD+N | 0.00005 | % | @ 1 kHz, G = 1 |
Key Features
- Low Noise: 5.1 nV/√Hz input voltage noise ensures high signal fidelity in audio and precision applications.
- Low Distortion: THD+N of 0.00005% delivers exceptional audio clarity.
- Wide Supply Range: Operates from ±2.25 V to ±18 V, offering flexibility in various designs.
- High CMRR: 120 dB common-mode rejection ratio minimizes interference.
- Compact Package: VSSOP-8 package saves space in PCB designs.
- Low Power Consumption: Quiescent current of 1.7 mA per amplifier enhances energy efficiency.
Applications
The OPA1678IDGKT is widely used in applications requiring high precision and low noise. It is particularly suited for:
- Professional Audio Equipment: Provides high fidelity in preamps, mixers, and audio interfaces.
- Medical Instrumentation: Ensures accurate signal processing in diagnostic and monitoring devices.
- Industrial Control Systems: Delivers reliable performance in automation and process control.
- Test and Measurement: Ideal for high-precision signal conditioning and analysis.
- Consumer Electronics: Enhances audio quality in high-end audio systems and portable devices.
Q & A
1. What is the input voltage range of the OPA1678IDGKT?
The OPA1678IDGKT operates with a supply voltage range of ±2.25 V to ±18 V.
2. How does the OPA1678IDGKT perform in low-noise applications?
It features an input voltage noise of 5.1 nV/√Hz, making it ideal for low-noise audio and precision applications.
3. What is the typical gain bandwidth product of this op-amp?
The typical gain bandwidth product is 10 MHz.
4. Is the OPA1678IDGKT suitable for high-temperature environments?
Yes, it operates in a temperature range of -40°C to +125°C.
5. What package does the OPA1678IDGKT come in?
It is available in a compact VSSOP-8 (DGK) package.
6. How does the THD+N performance impact audio applications?
With a THD+N of 0.00005%, it ensures exceptional audio clarity and minimal distortion.
7. What is the quiescent current per amplifier?
The quiescent current is 1.7 mA per amplifier.
8. Can the OPA1678IDGKT be used in single-supply applications?
No, it is designed for dual-supply operation.
9. What is the typical slew rate of this op-amp?
The typical slew rate is 7 V/µs.
10. What is the maximum input offset voltage?
The maximum input offset voltage is 0.5 mV.
