BA4558FVM-GTR

Overview

The BA4558FVM-GTR 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 bias current of 60 nA, an input offset voltage of 500 µV, and a common-mode rejection ratio of 70 dB. The equivalent input noise voltage density is 12 nV/√Hz. It supports an operating temperature range from -40°C to 105°C and holds AEC-Q100 automotive qualification.

Feature Summary

• Dual-channel architecture providing two independent operational amplifiers in a single compact package.
• Automotive-grade reliability certified under the AEC-Q100 standard for harsh environment durability.
• Low-noise performance characterized by low equivalent input noise voltage density suitable for precision signal conditioning.

Applications

• Audio pre-amplification stages requiring low noise characteristics
• Signal processing circuits in automotive infotainment systems
• General-purpose analog signal amplification

Procurement Notes

Verify the specific suffix 'GTR' against the manufacturer's latest datasheet to confirm tape-and-reel packaging details and ensure compatibility with automated assembly equipment. Confirm that the AEC-Q100 qualification status remains active for the specific lot, as component statuses can change without notice. Cross-reference the 8-MSOP footprint dimensions with your PCB design library to prevent mechanical clearance issues during placement.

Selection Notes

Select this component when a dual op-amp solution with automotive certification is required for space-constrained designs. The 8-MSOP package offers a smaller footprint compared to traditional DIP packages while maintaining similar electrical performance. Consider the 2 MHz bandwidth and 1 V/µs slew rate limits; if higher speed or lower noise is needed, evaluate alternative series such as the BD12732FVM for low-voltage applications or other high-speed ROHM op-amps.

Part Context

This part belongs to the BA4558 family of dual operational amplifiers, which are widely used as replacements for the industry-standard NE5532. The 'FVM' designation indicates the specific MSOP package variant, while 'GTR' typically denotes the reel packaging format. This family is designed to offer improved noise performance and reliability over legacy counterparts, making it suitable for modern audio and industrial applications.

Replacement Considerations

The BA4558F-E2 is a documented pin-compatible alternative within the same family, though it may differ in package type (SOP-8 vs MSOP-8) and maximum operating temperature. Verify thermal management requirements and PCB layout constraints before substituting, as package dimensions and thermal dissipation characteristics vary between SOP and MSOP formats.