Overview
The OPA2684IDR, 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 OPA2684IDR operates on a single supply voltage from +5V to +12V or dual supply voltages from ±2.5V to ±6.0V, and it has a low total supply current of 3.4mA.
Key Specifications
| Parameter | Value |
|---|---|
| Amplifier Type | Current Feedback |
| Bandwidth at G = +2 | 170MHz |
| Bandwidth at G > +10 | > 120MHz |
| Distortion at 5MHz | < –82dBc |
| Output Current | 120mA |
| Supply Voltage (Single) | +5V to +12V |
| Supply Voltage (Dual) | ±2.5V to ±6.0V |
| Supply Current | 3.4mA Total |
| Input Voltage Range | ±VS |
| Input Offset Voltage | 1500µV |
| Slew Rate | 780 V/µs |
| Operating Temperature | –40°C to +85°C |
| Package Type | SOT-23-8 |
| Mounting Type | Surface Mount |
| Gain Bandwidth Product | 1.9GHz |
| Number of Circuits | 2 |
Key Features
- Minimal bandwidth change versus gain, ensuring consistent performance across different gain settings.
- High bandwidth of 170MHz at a gain of +2 and over 120MHz at gains greater than +10.
- Low distortion of less than –82dBc at 5MHz.
- High output current capability of 120mA.
- Low supply current of 3.4mA total.
- Flexible supply voltage options: single supply from +5V to +12V or dual supply from ±2.5V to ±6.0V.
- High slew rate of 780 V/µs.
Applications
The OPA2684IDR is suitable for various high-frequency applications, including:
- Video and audio signal processing.
- Medical imaging and diagnostic equipment.
- Test and measurement instruments.
- High-speed data acquisition systems.
- Telecommunications and RF amplifiers.
Q & A
- What is the amplifier type of the OPA2684IDR?
The OPA2684IDR is a current-feedback operational amplifier. - What is the bandwidth of the OPA2684IDR at a gain of +2?
The bandwidth at a gain of +2 is 170MHz. - What is the maximum output current of the OPA2684IDR?
The maximum output current is 120mA. - What are the supply voltage options for the OPA2684IDR?
The device can operate on a single supply voltage from +5V to +12V or dual supply voltages from ±2.5V to ±6.0V. - What is the slew rate of the OPA2684IDR?
The slew rate is 780 V/µs. - What is the operating temperature range of the OPA2684IDR?
The operating temperature range is –40°C to +85°C. - What is the package type of the OPA2684IDR?
The package type is SOT-23-8. - How many amplifier circuits are included in the OPA2684IDR?
The device includes 2 amplifier circuits. - What is the gain bandwidth product of the OPA2684IDR?
The gain bandwidth product is 1.9GHz. - Is the OPA2684IDR still in production?
No, the OPA2684IDR is no longer manufactured, but substitutes or alternative package types may be available.
