LM258AP

Overview

The LM258AP is a dual operational amplifier manufactured by Texas Instruments, featuring two independent high-gain amplifiers within a single package. It operates with a wide supply voltage range from 3 V to 32 V for single supplies or ±1.5 V to ±16 V for dual supplies. Key electrical specifications include a gain-bandwidth product of 700 kHz and a slew rate of 300 mV/µs. The device supports rail-to-rail input operation and provides an output current capability of 20 mA per channel. It is housed in an 8-pin PDIP package and functions without a shutdown mode.

Feature Summary

• Dual-channel architecture providing two independent high-gain amplifiers in one package
• Wide single-supply voltage operation ranging from 3 V to 32 V
• Rail-to-rail input capability allowing signal swing close to the negative supply rail
• Internal frequency compensation eliminates the need for external components

Applications

• Transducer amplifiers for sensor signal conditioning
• DC gain blocks in instrumentation circuits
• Built-in test equipment signal processing

Procurement Notes

Verify the specific suffix 'A' indicates the enhanced performance variant compared to standard versions. Confirm the 'P' suffix corresponds to the PDIP-8 through-hole package type required for your board layout. Ensure the datasheet version matches the manufacturing date code to validate parameter tolerances such as input offset voltage and bias current limits.

Selection Notes

Select this component when dual amplification is required within a single footprint to save board space. It is suitable for applications requiring low power consumption with a quiescent current of approximately 350 µA. Consider the 700 kHz bandwidth limit for signal frequencies; higher speed requirements may necessitate alternative devices. Verify that the 20 mA output drive is sufficient for the connected load impedance.

Part Context

The LM258AP belongs to the LM258A series of dual operational amplifiers produced by Texas Instruments. This series is designed as a general-purpose solution for analog signal processing tasks. It serves as a direct pin-compatible replacement for other industry-standard dual op-amps like the LM158 and LM2904, facilitating easy upgrades in existing designs.

Replacement Considerations

The LM258AD is a surface-mount equivalent in SOIC-8 packaging. The LM258P offers the same DIP-8 form factor but may differ in performance grade.