LM1458N

Overview

The LM1458N/NOPB is a dual operational amplifier from Texas Instruments, housed in an 8-pin MDIP package for through-hole mounting. It operates within a supply voltage range of -18 V to +18 V (or 6 V to 36 V single supply). Key electrical parameters include a gain-bandwidth product of 1 MHz, a slew rate of 0.5 V/μs, and an input offset voltage of up to 6 mV. The device features an input bias current of 200 nA and supports output currents up to 45 mA. It functions reliably across a temperature range of 0°C to 70°C.

Feature Summary

• Dual-channel architecture providing two independent high-gain amplifiers in a single package
• Internal frequency compensation ensures stability without external components
• Wide single or dual power supply operation capability
• Input common-mode voltage range includes ground potential

Applications

• Active filter circuits
• General-purpose signal conditioning and amplification
• 4-20mA current loop transmitters

Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm lead-free compliance and RoHS status. Ensure the ordering part number matches the required package variant (MDIP/DIP-8). Confirm that the manufacturer designation aligns with Texas Instruments specifications before finalizing procurement orders.

Selection Notes

Select this component when a dual op-amp solution is required for general-purpose analog signal processing. It is suitable for applications needing wide supply voltage flexibility and ground-referenced input capabilities. Consider the 1 MHz bandwidth and 0.5 V/μs slew rate for moderate-speed signal handling requirements.

Part Context

The LM1458 series belongs to the family of dual operational amplifiers designed for versatile analog applications. It shares functional similarities with other industry-standard dual op-amps but offers specific performance characteristics tailored for cost-effective, high-volume production environments requiring reliable linear amplification.

Replacement Considerations

Direct pin-compatible substitutes may include the LM358N or LM258N, though electrical parameters such as input offset voltage and bias current may differ. Verify compatibility regarding supply voltage ranges and thermal performance before substitution.