BA4558F-E2

Overview

The BA4558F-E2 is a dual operational amplifier manufactured by ROHM Semiconductor, housed in an SOP-8 surface-mount package. It features a gain-bandwidth product of 2 MHz and a slew rate of 1 V/µs. The input offset voltage is typically 500 µV, with an input bias current of 60 nA. Operating on a supply voltage range from 8 V to 30 V, the device draws 3 mA of operating current. It offers a common-mode rejection ratio of 70 dB and an input voltage noise density of 12 nV/√Hz. The component operates within a temperature range of -40°C to +85°C.

Feature Summary

• Dual-channel low-noise operational amplifier design
• Wide single or dual power supply voltage operation
• Internal phase compensation for stability

Applications

• Audio signal processing circuits
• General-purpose analog signal conditioning
• Instrumentation front-end amplification

Procurement Notes

Verify the specific suffix E2 against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS compliance status. Confirm end-of-life status as some sources indicate obsolescence. Ensure the SOP-8 footprint matches the target PCB layout requirements before finalizing procurement decisions.

Selection Notes

Select this component when a dual op-amp with moderate bandwidth and low noise characteristics is required. It serves as a direct replacement for standard dual op-amps in audio and instrumentation applications. Verify that the 1 V/µs slew rate meets the dynamic signal requirements of the specific circuit design.

Part Context

This part belongs to the BA4558 series of dual operational amplifiers produced by ROHM Semiconductor. The series is characterized by low noise and wide supply voltage capabilities. The BA4558F-E2 variant specifically utilizes the SOP-8 surface-mount package format for compact board integration.

Replacement Considerations

BA4558YF-MGE2 is listed as a similar substitute part number by the manufacturer.