Texas Instruments

OPA3681E/2K5  

OP Amps, Buffer Amps ICs

OPA3681E/2K5 Description

The OPA3681E/2K5 is a high-performance, current feedback operational amplifier (op-amp) from Texas Instruments, part of the SpeedPlus™ series. This op-amp is designed for applications requiring high bandwidth and fast slew rates. It features a -3dB bandwidth of 280 MHz and a slew rate of 2100 V/µs, making it suitable for high-speed signal processing and amplification tasks. The OPA3681E/2K5 operates from a supply voltage range of 5 V to 12 V and draws a supply current of 18 mA. It is available in a surface-mount package, specifically a 16-lead SSOP, which is ideal for compact designs. This op-amp is obsolete, but it remains a valuable component for legacy systems and applications where its unique performance characteristics are required.

OPA3681E/2K5 Features

• High Bandwidth and Fast Slew Rate: With a -3dB bandwidth of 280 MHz and a slew rate of 2100 V/µs, the OPA3681E/2K5 is capable of handling high-frequency signals with minimal distortion, making it ideal for applications such as video signal processing and high-speed data acquisition.
• Current Feedback Architecture: The current feedback design ensures stable performance across a wide range of frequencies and load conditions, providing consistent gain and phase characteristics.
• Wide Supply Voltage Range: The op-amp operates from a supply voltage range of 5 V to 12 V, offering flexibility in power supply requirements and compatibility with various system architectures.
• Low Input Bias Current: With an input bias current of 30 µA, the OPA3681E/2K5 minimizes the impact of bias currents on the input signal, ensuring high accuracy and stability in precision applications.
• High Output Current: Each channel can deliver up to 190 mA of output current, enabling the op-amp to drive heavy loads directly, reducing the need for additional buffering components.
• Low Input Offset Voltage: The input offset voltage of 1.3 mV ensures high accuracy and linearity in signal processing applications, minimizing errors and improving overall system performance.
• Moisture Sensitivity Level (MSL) 1: The MSL 1 rating indicates that the component is not moisture-sensitive, allowing for unlimited exposure to ambient conditions without the need for special handling or packaging.
• Compliance and Packaging: The OPA3681E/2K5 is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations. It is available in bulk packaging, suitable for large-scale production and inventory management.

OPA3681E/2K5 Applications

The OPA3681E/2K5 is well-suited for a variety of high-speed and high-precision applications, including:

• Video Signal Processing: Ideal for amplifying and processing video signals, ensuring high fidelity and minimal distortion.
• High-Speed Data Acquisition: Suitable for applications requiring fast signal capture and processing, such as oscilloscopes and high-speed ADC interfaces.
• RF and Microwave Systems: Can be used in RF front-end circuits for amplification and signal conditioning, thanks to its high bandwidth and fast slew rate.
• Precision Signal Amplification: The low input offset voltage and bias current make it suitable for precision instrumentation and measurement applications.
• Industrial Automation: Can be used in control systems and sensors where high-speed signal processing and amplification are required.

Conclusion of OPA3681E/2K5

The OPA3681E/2K5 from Texas Instruments is a high-performance current feedback op-amp that offers exceptional bandwidth and slew rate capabilities. Its wide supply voltage range, low input bias current, and high output current make it a versatile component for a variety of high-speed and precision applications. Despite being obsolete, the OPA3681E/2K5 remains a valuable choice for legacy systems and applications where its unique performance characteristics are essential. Its compliance with international regulations and robust packaging ensure ease of use and integration into existing designs.

OPA3681E/2K5 Documents

Download datasheets and manufacturer documentation for OPA3681E/2K5

Datasheets :

OPA3681