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OPA681P

OPA681P Description

The OPA681P is a high-performance, current feedback operational amplifier designed for demanding applications requiring wide bandwidth and high slew rates. Manufactured by Burr-Brown, a division of Texas Instruments, this IC is part of the SpeedPlus™ series, known for its exceptional performance characteristics. The OPA681P features a -3dB bandwidth of 280 MHz and a remarkable slew rate of 2100V/µs, making it suitable for high-speed signal processing tasks. It operates from a supply voltage range of 5V to 12V and draws a supply current of 6mA. The amplifier provides an output current of 190mA per channel, ensuring robust performance in various applications. With an input bias current of 30µA and an input offset voltage of 1.3mV, the OPA681P offers precision and reliability. The device is housed in a through-hole package and is available in a tube format, making it easy to integrate into existing systems. Although the OPA681P is now obsolete, its legacy continues to influence the design of modern high-speed amplifiers.

OPA681P Features

• High Bandwidth and Slew Rate: The OPA681P boasts a -3dB bandwidth of 280 MHz and a slew rate of 2100V/µs, enabling it to handle high-frequency signals with minimal distortion.
• Wide Supply Voltage Range: It operates from a supply voltage range of 5V to 12V, offering flexibility in power supply requirements.
• Low Supply Current: Drawing only 6mA of supply current, the OPA681P is energy-efficient, making it suitable for applications with limited power budgets.
• High Output Current: The amplifier provides an output current of 190mA per channel, ensuring strong drive capabilities for various loads.
• Precision Performance: With an input bias current of 30µA and an input offset voltage of 1.3mV, the OPA681P delivers precise signal processing.
• Through-Hole Mounting: The through-hole package and tube format make it easy to integrate into existing systems, ensuring compatibility with traditional PCB designs.
• SpeedPlus™ Series: As part of the SpeedPlus™ series, the OPA681P inherits the high-performance attributes associated with this family of amplifiers.

OPA681P Applications

The OPA681P is ideal for applications requiring high-speed signal processing and precision performance. Some specific use cases include:

• High-Speed Signal Conditioning: The wide bandwidth and high slew rate make it suitable for conditioning high-frequency signals in communication systems and radar applications.
• Video Signal Processing: Its ability to handle high-frequency signals makes it ideal for video amplifiers and signal processors in professional video equipment.
• Data Acquisition Systems: The precision and high-speed performance of the OPA681P make it a valuable component in data acquisition systems, ensuring accurate and rapid signal processing.
• RF and Microwave Applications: The OPA681P can be used in RF and microwave systems where high-speed amplification and signal integrity are critical.
• Medical Equipment: In medical imaging and diagnostic equipment, the OPA681P can process high-speed signals with precision, contributing to accurate diagnoses.

Conclusion of OPA681P

The OPA681P is a high-performance current feedback operational amplifier that offers exceptional bandwidth, slew rate, and precision. Its wide supply voltage range, low supply current, and high output current make it suitable for a variety of demanding applications. Although now obsolete, the OPA681P remains a benchmark for high-speed amplifiers and continues to influence the design of modern devices. Its through-hole package and tube format ensure ease of integration into existing systems, making it a reliable choice for engineers and designers in the electronics industry.