LM1458N

Overview

The LM1458N is a dual general-purpose operational amplifier manufactured by Fairchild Semiconductor, housed in an 8-DIP package. It features internal frequency compensation and short-circuit protection without requiring external components. The device operates within a supply voltage range of ±6V to ±18V (12V to 36V total) and supports an operating temperature range from 0°C to +70°C. Key electrical characteristics include a gain-bandwidth product of 1MHz, a slew rate of 0.5V/µs, and an input bias current maximum of 500nA at 25°C.

Feature Summary

• Internal frequency compensation eliminates the need for external components
• Short circuit protection ensures robust operation under fault conditions
• Wide common mode and differential voltage ranges enhance signal handling
• Latch-up free design maintains stability during high common mode voltages

Applications

• Voltage followers
• Integrator circuits
• Summing amplifiers
• General feedback applications

Procurement Notes

Verify that the component is sourced from authorized distributors to ensure authenticity. Confirm the specific ordering suffix matches the required package type, as variations exist between DIP and SOP formats. Check the manufacturer's documentation for any updates regarding the life support policy restrictions before deployment in critical systems.

Selection Notes

Select this component for applications requiring dual amplification with inherent frequency compensation. The wide common mode voltage range makes it suitable for voltage follower configurations where latch-up must be avoided. Ensure the power supply constraints align with the ±18V absolute maximum rating and verify thermal requirements against the specified operating temperature limits.

Part Context

This part belongs to the LM1458 series of dual operational amplifiers originally produced by Fairchild Semiconductor. The series is designed for general-purpose analog signal processing tasks. The LM1458N specifically denotes the dual in-line package variant, distinguishing it from surface-mount options like the LM1458M.

Replacement Considerations

LM1458CN

FAQ

Does the LM1458N require external components for frequency compensation?

No, the LM1458N includes internal frequency compensation and does not require external components for this purpose.

What is the maximum power supply voltage for the LM1458N?

The absolute maximum power supply voltage is ±18V.