onsemi

KF351  

OP Amps, Buffer Amps ICs

KF351 Description

The KF351 is a high-performance operational amplifier (op-amp) from onsemi, designed to deliver exceptional performance in a wide range of applications. This op-amp features a JFET input stage, which provides low input bias current and high input impedance, making it ideal for precision signal processing and low-noise applications. The KF351 is housed in an 8-pin DIP package, which is suitable for through-hole mounting, ensuring robust mechanical stability and ease of integration into various electronic systems.

KF351 Features

• Operating Temperature Range: The KF351 operates reliably within a temperature range of 0°C to 70°C, making it suitable for a variety of environments, from standard room conditions to moderately elevated temperatures.
• High Slew Rate: With a slew rate of 13V/µs, the KF351 can handle fast-changing signals without significant distortion, ensuring high-fidelity signal processing in high-frequency applications.
• Gain Bandwidth Product: The KF351 offers a gain bandwidth product of 4 MHz, which allows for high-gain amplification at relatively high frequencies, making it suitable for applications requiring wide bandwidth and high gain.
• Low Input Bias Current: The input bias current is as low as 50 pA, which minimizes the loading effect on the input signal source, ensuring high accuracy and stability in precision applications.
• Low Input Offset Voltage: The input offset voltage is kept to a minimum of 5 mV, which helps in maintaining signal integrity and reducing errors in precision signal processing.
• Low Supply Current: The KF351 consumes only 2.3mA of supply current, which is beneficial for power-sensitive applications and helps in reducing overall power consumption.
• Through-Hole Mounting: The through-hole mounting type ensures robust mechanical stability and ease of integration into various electronic systems, making it suitable for both prototyping and production environments.
• Obsolete Status: While the KF351 is marked as obsolete, it remains a reliable choice for applications where its specific performance characteristics are required, and it is still available for purchase in limited quantities.

KF351 Applications

The KF351 is well-suited for a variety of applications due to its high performance and robust features. Some specific use cases include:

• Precision Signal Processing: The low input bias current and high input impedance make the KF351 ideal for applications requiring high-precision signal processing, such as in medical equipment, scientific instruments, and high-fidelity audio systems.
• High-Frequency Amplification: The high slew rate and gain bandwidth product enable the KF351 to handle high-frequency signals effectively, making it suitable for RF and microwave applications, as well as in high-speed data acquisition systems.
• Low-Power Applications: The low supply current of 2.3mA makes the KF351 a suitable choice for battery-powered devices and other applications where power consumption is a critical consideration.
• Industrial Control Systems: The robust through-hole mounting and wide operating temperature range make the KF351 suitable for industrial control systems, where reliability and durability are paramount.

Conclusion of KF351

The KF351 from onsemi is a versatile and high-performance operational amplifier that offers a unique combination of features and benefits. Its low input bias current, high slew rate, and wide gain bandwidth product make it an excellent choice for precision signal processing and high-frequency applications. While marked as obsolete, the KF351 remains a reliable and effective solution for applications where its specific performance characteristics are required. Its through-hole mounting and wide operating temperature range further enhance its suitability for a variety of industrial and commercial applications.

KF351 Documents

Download datasheets and manufacturer documentation for KF351