Overview
The OPA1678IDGKR is a dual-channel audio operational amplifier produced by Texas Instruments. Designed for high-performance audio applications, this amplifier is part of the OPA167x series, which is renowned for its low noise and low distortion characteristics. The OPA1678IDGKR is housed in a VSSOP-8 package and is ideal for use in professional audio equipment, consumer electronics, and other applications requiring high-fidelity audio amplification. Its market positioning targets audio engineers and designers looking for reliable, high-quality components to enhance audio signal integrity.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Product Category | Operational Amplifiers | - | - |
| Installation Style | SMD/SMT | - | - |
| Package / Case | VSSOP-8 | - | - |
| Number of Channels | 2 | Channel | - |
| Maximum Power Supply Voltage | 36 | V | - |
| Gain Bandwidth Product | 16 | MHz | - |
| Output Current per Channel | 50 | mA | - |
| Slew Rate | 9 | V/µs | - |
| Input Offset Voltage | 2 | mV | - |
| Minimum Power Supply Voltage | 4.5 | V | - |
| Minimum Operating Temperature | -40 | °C | - |
| Maximum Operating Temperature | +85 | °C | - |
| Input Bias Current | 10 | pA | - |
| Operating Supply Current | 2 | mA | - |
| Shutdown | No | - | - |
| Common Mode Rejection Ratio | 110 | dB | - |
| Input Voltage Noise Density | 4.5 | nV/√Hz | - |
| Series | OPA1678 | - | - |
| Amplifier Type | Audio Operation Amplifier | - | - |
| Brand | Texas Instruments | - | - |
| Output Type | Rail-to-Rail | - | - |
| Factory Pack Quantity | 2500 | - | - |
| Subcategory | Amplifier ICs | - | - |
| THD + Noise | 0.0001 | % | - |
| Unit Weight | 20 | mg | - |
Key Features
- Low noise: 4.5nV/√Hz at 1kHz
- Low distortion: 0.0001% at 1kHz
- High open-loop gain: 114dB
- High common-mode rejection: 110dB
- Low quiescent current: 2mA per channel
- Low input bias current: 10pA (typical)
- Slew rate: 9 V/µs
- Wide gain bandwidth: 16 MHz (G = 1)
- Unit gain stable
- Rail-to-rail output
- Wide supply voltage range: ±2.25V to ±18V or 4.5V to 36V
- Dual-channel
Applications
The OPA1678IDGKR is widely used in various audio applications, including professional audio equipment, consumer electronics, and automotive audio systems. Its low noise and low distortion characteristics make it ideal for high-fidelity audio amplification, ensuring clear and accurate sound reproduction. Additionally, its wide supply voltage range and rail-to-rail output make it versatile for use in different power supply configurations and load conditions.
Q & A
1. What is the operating temperature range of the OPA1678IDGKR?
The operating temperature range is from -40°C to +85°C.
2. What is the input voltage noise density of the OPA1678IDGKR?
The input voltage noise density is 4.5nV/√Hz at 1kHz.
3. Is the OPA1678IDGKR unit gain stable?
Yes, the OPA1678IDGKR is unit gain stable.
4. What is the slew rate of the OPA1678IDGKR?
The slew rate is 9 V/µs.
5. What is the maximum power supply voltage for the OPA1678IDGKR?
The maximum power supply voltage is 36V.
6. Does the OPA1678IDGKR have a shutdown feature?
No, the OPA1678IDGKR does not have a shutdown feature.
7. What is the common mode rejection ratio (CMRR) of the OPA1678IDGKR?
The CMRR is 110dB.
8. What is the gain bandwidth product of the OPA1678IDGKR?
The gain bandwidth product is 16MHz.
9. What is the typical input bias current of the OPA1678IDGKR?
The typical input bias current is 10pA.
10. What is the package type of the OPA1678IDGKR?
The package type is VSSOP-8.
