BA4558RFVT-E2

Overview

The BA4558RFVT-E2 is a low noise dual operational amplifier manufactured by ROHM Semiconductor. It features two independent circuits within an 8-pin TSSOP-B package. The device operates on a power supply range of 8V to 30V, with a typical quiescent current of 1.5mA per channel. Key electrical specifications include a maximum input offset voltage of 6mV, a typical input bias current of 60nA, and a slew rate of 1V/µs. The input voltage range extends from Vee+1.0V to Vcc-1.0V, matching the output voltage swing capabilities.

Feature Summary

• Low noise performance suitable for sensitive signal processing applications
• Dual circuit configuration providing two independent amplifiers in a single package
• Wide operating temperature range supporting industrial environments

Applications

• Audio preamplifier stages requiring low noise characteristics
• Sensor signal conditioning circuits
• General purpose analog signal processing

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notices, as some sources indicate potential discontinuation. Ensure the specific suffix matches required packaging and quality standards before procurement.

Selection Notes

Select this component when low noise performance is critical alongside standard dual op-amp functionality. Consider the TSSOP-8 package constraints for PCB layout. Verify that the 1V/µs slew rate meets the bandwidth requirements of the target application compared to higher-speed alternatives.

Part Context

This part belongs to the BA4558 series of operational amplifiers produced by ROHM Semiconductor. It is designed as a low-noise alternative to standard dual op-amps, offering improved signal integrity for audio and instrumentation applications while maintaining compatibility with common industry pinouts.

Replacement Considerations

BA4558YF-MGE2 is listed as a similar replacement option by the same manufacturer.