LM258AYDT

Overview

The LM258AYDT is a dual operational amplifier manufactured by STMicroelectronics, housed in an 8-SOIC surface-mount package. It operates within a supply voltage range of 3 V to 30 V and supports a working temperature from -40°C to 105°C. Key electrical parameters include a gain-bandwidth product of 1.1 MHz, a slew rate of 0.6 V/µs, and an output current capability of 40 mA per channel. The device features low input bias current (20 nA), low input offset voltage (1 mV), and consumes 700 µA for both channels. It is AEC-Q100 qualified for automotive applications.

Feature Summary

• Dual high-gain operational amplifiers with internal frequency compensation designed for single power supply operation
• Input common-mode voltage range includes ground, allowing output voltage to swing to ground even on single supplies
• Low-power supply drain that remains essentially independent of the magnitude of the power supply voltage
• Automotive-grade qualification ensuring reliability under wide operating temperature conditions

Applications

• Transducer amplifiers
• DC gain blocks
• Single power supply interface electronics

Procurement Notes

Verify the specific suffix 'Y' against the manufacturer's official documentation to confirm it denotes the standard commercial or automotive grade variant without additional functional changes. Confirm the 8-SOIC package dimensions match the design footprint. Ensure the order quantity aligns with the standard reel size of 5,000 units if purchasing in bulk tape-and-reel format.

Selection Notes

Select this component when a dual op-amp solution is required for single-supply systems with low power consumption constraints. The 1.1 MHz bandwidth and 40 mA output current make it suitable for general-purpose signal conditioning. Verify that the 1 mV input offset voltage meets the precision requirements of the target application compared to higher-offset alternatives.

Part Context

This part belongs to the LM258 series of low-power dual operational amplifiers. It shares architectural similarities with the LM158 and LM358 but offers improved specifications such as lower input offset voltage and bias current. The 'A' designation typically indicates tighter performance tolerances compared to the standard LM258, while the 'Y' suffix specifies the specific packaging and handling configuration.

Replacement Considerations

LM258AMDREP is listed as a substitute part number.