LM1458M

Overview

The LM1458M is a dual operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It features two independent amplifiers with a gain-bandwidth product of 1 MHz and a slew rate of 0.5 V/µs. The device operates on supply voltages ranging from 6 V to 36 V (±3 V to ±18 V) with a typical operating supply current of 3 mA. Key electrical parameters include a maximum input offset voltage of 1 mV, an input bias current of 200 nA, and a per-channel output current capability of 45 mA.

Feature Summary

• Dual operational amplifier architecture providing two independent signal processing channels within a single integrated circuit.
• Surface-mount SOIC-8 packaging designed for automated assembly and compact printed circuit board layouts.
• Bipolar input stage technology enabling low input bias current and stable performance across the specified temperature range.

Applications

• General-purpose analog signal conditioning circuits
• Audio pre-amplification stages
• Active filter implementations

Procurement Notes

Verify the specific suffix against the manufacturer's official datasheet to confirm pinout compatibility and electrical tolerances. Ensure the procurement source provides documentation confirming the component meets the stated bipolar process specifications and SOIC-8 physical dimensions. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing acquisition.

Selection Notes

Select this component when a dual-channel solution is required in a surface-mount form factor. The 1 MHz bandwidth and 45 mA output current suit moderate-speed applications. Verify that the 8-SOIC thermal dissipation characteristics align with the system's power budget, as the device handles up to 400 mW of power dissipation under standard conditions.

Part Context

The LM1458M belongs to the LM1458 series of dual operational amplifiers produced by Texas Instruments. This series represents a military-grade or high-reliability variant of the industry-standard LM1458 architecture, offering robust performance in demanding environments while maintaining compatibility with standard dual op-amp design methodologies.

Replacement Considerations

LM1458M/NOPB