BA4558RF-E2

Overview

The BA4558RF-E2 is a dual operational amplifier manufactured by ROHM Semiconductor, housed in an 8-SOP surface-mount package. It features a gain-bandwidth product of 2 MHz and a slew rate of 1 V/µs. The device operates within a supply voltage range of 8 V to 30 V, with a maximum dual supply of ±15 V. Key electrical specifications include a typical input offset voltage of 500 µV, input bias current of 60 nA, and operating supply current of 3 mA. It supports a wide temperature range from -40°C to +105°C and offers a common-mode rejection ratio of 70 dB.

Feature Summary

• Dual-channel low-noise operational amplifier architecture
• Wide single or split power supply operation capability
• Extended industrial temperature rating for harsh environments

Applications

• Audio signal processing circuits
• Sensor interface amplification
• General-purpose analog signal conditioning

Procurement Notes

Verify component authenticity through authorized channels as the part status is End-of-Life. Confirm RoHS compliance and specific packaging variants (TR, CT) with the supplier. Check for recent Product Change Notices regarding manufacturing updates or final purchase recommendations before integration into new designs.

Selection Notes

Select this component for applications requiring low noise performance and wide supply voltage flexibility. Ensure the design accommodates the 8-SOP footprint and thermal requirements for the specified temperature range. Consider the end-of-life status when planning long-term production lifecycles.

Part Context

This device belongs to the BA4558 series of low-noise dual operational amplifiers. It is designed for high-performance analog applications where signal integrity is critical. The series is known for its balance of low power consumption and robust electrical characteristics across varying supply conditions.

Replacement Considerations

BA4558YF-MGE2 is listed as a similar replacement option.