Overview
The OPA2684IDRG4, produced by Texas Instruments, is a low-power, dual current-feedback operational amplifier. This device is part of the CFBPLUS family and is known for its high performance in wideband applications. It offers minimal bandwidth change versus gain, making it suitable for a variety of high-frequency applications. The OPA2684 operates on a single +5V to +12V supply or dual ±2.5V to ±6.0V supply, making it versatile for different system requirements.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Units |
|---|---|---|---|---|
| Small-Signal Bandwidth (G = +2, RF = 800Ω) | 170 MHz | 120 MHz | MHz | |
| Small-Signal Bandwidth (G = +10, RF = 800Ω) | 120 MHz | MHz | ||
| Harmonic Distortion at 5MHz | < –82 dBc | dBc | ||
| Output Current | 120 mA | mA | ||
| Supply Current (Total) | 3.4 mA | mA | ||
| Operating Voltage Range (Single Supply) | +5V to +12V | V | ||
| Operating Voltage Range (Dual Supply) | ±2.5V to ±6.0V | V |
Key Features
- Minimal bandwidth change versus gain, ensuring stable performance across different gain settings.
- High bandwidth: up to 170 MHz at a gain of +2.
- Low distortion: less than –82 dBc at 5 MHz.
- High output current: up to 120 mA.
- Low supply current: 3.4 mA total.
- Flexible supply operation: single +5V to +12V or dual ±2.5V to ±6.0V.
Applications
The OPA2684IDRG4 is suitable for various high-frequency applications, including:
- Video and audio amplification.
- Medical imaging and diagnostic equipment.
- High-speed data acquisition systems.
- Test and measurement instruments.
- Professional audio equipment.
Q & A
- What is the typical small-signal bandwidth of the OPA2684 at a gain of +2?
The typical small-signal bandwidth is 170 MHz at a gain of +2 with RF = 800Ω.
- What is the maximum output current of the OPA2684?
The maximum output current is 120 mA.
- What are the operating voltage ranges for the OPA2684?
The OPA2684 can operate on a single +5V to +12V supply or dual ±2.5V to ±6.0V supply.
- What is the typical supply current of the OPA2684?
The typical total supply current is 3.4 mA.
- What is the harmonic distortion of the OPA2684 at 5 MHz?
The harmonic distortion is less than –82 dBc at 5 MHz.
- What are some common applications of the OPA2684?
Common applications include video and audio amplification, medical imaging, high-speed data acquisition, test and measurement instruments, and professional audio equipment.
- How does the bandwidth of the OPA2684 change with gain?
The OPA2684 has minimal bandwidth change versus gain, ensuring stable performance across different gain settings).
- What is the package type and temperature range for the OPA2684IDRG4?
The OPA2684IDRG4 is available in various packages and operates over a temperature range of –40°C to +85°C).
- Where can I find detailed electrical characteristics of the OPA2684?
Detailed electrical characteristics can be found in the datasheet available on the Texas Instruments website).
- How do I ensure the correct operation of the OPA2684 in my circuit?
Ensure the correct operation by following the specifications and application notes provided in the datasheet, and consult the typical performance curves and test conditions).
