LM258WYST

Overview

The LM258WYST is a dual general-purpose operational amplifier manufactured by STMicroelectronics. It features two independent circuits in an 8-MiniSO surface-mount package. Key electrical specifications include a gain-bandwidth product of 1.1 MHz, a slew rate of 0.6 V/µs, and an input bias current of 20 nA. The device operates within a supply voltage range of 3 V to 30 V and supports output currents up to 60 mA per channel. It is qualified under AEC-Q100 standards for automotive applications and functions across a temperature range of -40°C to 105°C.

Feature Summary

• Dual-channel architecture providing two independent operational amplifiers in a compact surface-mount package
• Automotive-grade qualification ensuring reliability for demanding environmental conditions
• Low power consumption with minimal input bias current for efficient signal processing

Applications

• Automotive sensor signal conditioning
• General-purpose analog signal amplification
• Industrial control system interfaces

Procurement Notes

Verify the specific suffix 'YST' against official STMicroelectronics documentation to confirm the exact package type and tape-and-reel configuration. Ensure compatibility with AEC-Q100 requirements if used in automotive designs. Cross-reference datasheet revisions to validate pinout and electrical limits before finalizing procurement orders.

Selection Notes

Select this component when a dual op-amp solution is required for space-constrained surface-mount designs. The MiniSO package offers a smaller footprint compared to standard SOIC variants. Consider the 1.1 MHz bandwidth and 0.6 V/µs slew rate for moderate-speed applications. Verify that the 3 V to 30 V supply range aligns with the target circuit's power rails.

Part Context

This part belongs to the LM258 series of dual operational amplifiers. The LM258 family is widely recognized for its versatility in general-purpose analog applications. The WYST variant specifically denotes the 8-MiniSO packaging option, distinguishing it from other package types like DFN or standard SOIC found within the same product line.

Replacement Considerations

Check for direct pin-compatible alternatives within the LM258 family, such as LM258DT or LM258QT, depending on required package constraints. Verify that substitute parts meet the same AEC-Q100 automotive qualification if applicable.