BA4558RFVM-TR

Overview

The BA4558RFVM-TR is a dual operational amplifier manufactured by ROHM Semiconductor, housed in an 8-MSOP 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 typical supply current of 3 mA. Key electrical specifications include an input offset voltage of 500 µV, an input bias current of 60 nA, and a common-mode rejection ratio of 70 dB. The input voltage noise density is specified at 12 nV/√Hz.

Feature Summary

• Dual-channel low-noise operational amplifier architecture
• Wide single-supply operating voltage capability up to 30 V
• Surface-mount MSOP8 packaging for compact integration

Applications

• General-purpose signal conditioning circuits
• Audio pre-amplification stages
• Sensor interface amplifiers

Procurement Notes

Verify component authenticity through authorized distribution channels due to end-of-life status. Confirm RoHS compliance and specific tape-and-reel quantities against the latest manufacturer documentation. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly.

Selection Notes

Select this component for applications requiring low noise performance within a wide voltage range. Compare input offset voltage and bias current requirements against alternative general-purpose op-amps. Consider the 8-MSOP footprint constraints during PCB layout design.

Part Context

This part belongs to the BA4558 series of dual operational amplifiers from ROHM Semiconductor. It is designed as a low-noise alternative to standard bipolar op-amps, offering improved noise characteristics while maintaining compatibility with common supply voltages and pin configurations found in legacy designs.

Replacement Considerations

Check for direct pin-compatible substitutes such as the BA4558YFVM-MGTR or other variants within the BA4558 family. Verify that replacement parts maintain equivalent noise density and bandwidth specifications.