LM258APT

Overview

The LM258APT is a dual low-power operational amplifier manufactured by STMicroelectronics, housed in an 8-pin TSSOP surface-mount package. It features a gain-bandwidth product of 1.1 MHz and a slew rate of 600 mV/µs. The device operates on a supply voltage range of 3 V to 30 V with a typical operating current of 1.2 mA per channel. Key electrical specifications include a maximum input offset voltage of 3 mV, input bias current of 50 nA, and common-mode rejection ratio of 85 dB. It supports output currents up to 40 mA and functions within a temperature range of -40°C to +105°C.

Feature Summary

• Dual-channel architecture with internal frequency compensation for stable single-supply operation
• Rail-to-rail output capability allowing voltage swing down to ground potential
• Low power consumption characteristics independent of supply voltage magnitude
• Wide common-mode input voltage range including the negative rail

Applications

• Transducer signal amplification
• DC gain block implementations
• Single-supply logic system interface electronics

Procurement Notes

Verify the specific suffix 'APT' corresponds to the TSSOP-8 package and reel/cut-tape packaging configuration. Confirm RoHS compliance status and AEC-Q100 automotive qualification requirements against the latest manufacturer datasheet. Ensure design compatibility with the specified 3 V to 30 V supply range and -40°C to +105°C operating temperature limits before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring low quiescent current and single-supply functionality. The TSSOP-8 package suits space-constrained surface-mount applications. Verify that the 1.1 MHz bandwidth and 600 mV/µs slew rate meet signal processing speed requirements. Consider the 3 mV input offset voltage tolerance for precision analog signal conditioning tasks.

Part Context

This part belongs to the LM258A series of low-power dual operational amplifiers. It shares functional similarities with the standard LM258 but offers improved performance metrics such as tighter offset voltage specifications. The device is designed for general-purpose analog signal processing where power efficiency and single-supply compatibility are primary design constraints.

Replacement Considerations

Direct pin-compatible substitutes include the LM258D (SOIC-8) and LM258ADT (SOIC-8). Verify package footprint differences between TSSOP and SOIC variants during board layout adjustments.