LM258AWDT

Overview

The LM258AWDT is a low-power dual operational amplifier manufactured by STMicroelectronics. It features two independent high-gain amplifiers with internal frequency compensation, designed for single-supply operation from 3 V to 30 V. Key electrical parameters include a gain-bandwidth product of 1.1 MHz, a slew rate of 600 mV/us, and an input offset voltage of 3 mV. The device draws a typical supply current of 700 uA per channel and provides an output current capability of 40 mA. It operates within a temperature range of -40°C to +105°C and is housed in an SOIC-8 surface-mount package.

Feature Summary

• Single-supply operation capability with input common mode voltage including ground
• Internal frequency compensation eliminates external component requirements
• Low power consumption largely independent of supply voltage magnitude
• Output voltage swing extends to ground potential

Applications

• Transducer signal amplification
• DC gain blocks in instrumentation
• Interface electronics for logic systems

Procurement Notes

Verify the specific suffix AWDT against the manufacturer's official datasheet to confirm pinout compatibility and electrical tolerances. Ensure the SOIC-8 package dimensions match the target PCB footprint. Confirm RoHS compliance status and automotive qualification if required for the specific application environment before finalizing procurement.

Selection Notes

Select this component when single-supply operation is required without negative rail generation. The low quiescent current makes it suitable for battery-powered designs. Verify that the 1.1 MHz bandwidth meets the signal frequency requirements. Consider the 3 mV input offset voltage for precision applications requiring calibration.

Part Context

This part belongs to the LM258W series of low-power dual operational amplifiers. It shares functional similarities with other members like LM258AWYPT but differs in packaging. The series is characterized by its ability to operate directly from standard +5 V logic supplies, simplifying system design compared to dual-supply alternatives.

Replacement Considerations

LM258AWYPT offers identical electrical characteristics in a TSSOP-8 package. LM258QT provides similar performance in a DFN-8 package. Verify pin-to-pin compatibility and thermal dissipation requirements when substituting packages.