onsemi

LM1458N

LM1458N Description

The LM1458N is a general-purpose operational amplifier (op-amp) designed for a wide range of applications requiring high performance and reliability. Manufactured by onsemi, this dual-channel op-amp features a robust set of specifications that make it suitable for various linear IC applications. The LM1458N operates within a supply voltage range of 36 V (both minimum and maximum) and can function effectively within an operating temperature range of 0°C to 70°C. It is housed in a through-hole package, specifically an 8-pin DIP (Dual In-line Package), which ensures easy integration into printed circuit boards.

LM1458N Features

• High Supply Voltage Range: The LM1458N supports a wide supply voltage span of 36 V, making it suitable for applications requiring high voltage levels.
• Low Input Bias Current: With an input bias current of only 80 nA, the LM1458N minimizes the impact of bias currents on the overall circuit performance, ensuring high accuracy in signal processing.
• Low Input Offset Voltage: The 2 mV input offset voltage ensures minimal error in the output signal, contributing to the amplifier's precision.
• Dual-Channel Operation: The LM1458N features two independent operational amplifier channels, each capable of delivering up to 20 mA of output current, providing flexibility in circuit design.
• High Slew Rate: A slew rate of 0.5 V/µs allows the LM1458N to handle high-frequency signals effectively, making it suitable for applications requiring fast signal processing.
• Gain Bandwidth Product: With a gain bandwidth product of 1 MHz, the LM1458N offers a good balance between gain and bandwidth, ensuring stable performance across a wide range of frequencies.
• Low Supply Current: Each channel consumes only 2.3 mA of supply current, making the LM1458N energy-efficient and suitable for low-power applications.
• Through-Hole Mounting: The through-hole mounting type ensures reliable mechanical stability and ease of installation on PCBs.
• Obsolete Status: While the LM1458N is marked as obsolete, it remains a reliable choice for legacy systems and applications where its specific features are still required.

LM1458N Applications

The LM1458N is ideal for a variety of applications due to its general-purpose nature and robust performance characteristics. Some specific use cases include:

• Signal Processing: The low input bias current and low input offset voltage make the LM1458N suitable for precision signal processing applications, such as in audio equipment and instrumentation.
• Power Amplification: With its ability to deliver up to 20 mA per channel, the LM1458N can be used in power amplification circuits, providing sufficient drive for various loads.
• Filter Design: The high slew rate and gain bandwidth product allow the LM1458N to be used in active filter designs, ensuring accurate and stable frequency response.
• Voltage Regulation: The LM1458N can be employed in voltage regulation circuits, providing stable output voltage with minimal ripple.
• Legacy Systems: Given its obsolete status, the LM1458N is particularly useful in maintaining and repairing legacy systems where its specific features are still required.

Conclusion of LM1458N

The LM1458N, manufactured by onsemi, is a versatile general-purpose operational amplifier that offers a combination of high performance and reliability. Its wide supply voltage range, low input bias current, and low input offset voltage make it suitable for precision applications. The dual-channel design, high slew rate, and gain bandwidth product provide flexibility and stability in various signal processing tasks. Despite its obsolete status, the LM1458N remains a valuable component for maintaining legacy systems and applications where its unique features are still in demand.