BA2904FV-E2

Overview

The BA2904FV-E2 is a dual-channel ground sense operational amplifier manufactured by ROHM Semiconductor. It operates on a single power supply ranging from 3 V to 36 V. Key electrical parameters include a gain-bandwidth product of 500 kHz, a slew rate of 200 mV/us, and an input offset voltage of 2 mV. The device draws a typical operating current of 500 uA per channel and provides an output current capability of 30 mA. It features a common-mode rejection ratio of 50 dB and an input voltage noise density of 40 nV/sqrt Hz. The component is housed in an SSOP-8 surface-mount package and supports an industrial temperature range from -40 C to +125 C.

Feature Summary

• Ground sense input capability allowing operation with input voltages extending to the negative supply rail.
• Wide single-supply voltage operation supporting systems from 3 V up to 36 V.
• Low quiescent current consumption suitable for battery-powered applications.

Applications

• Current sensing circuits utilizing low-side shunt resistors.
• Industrial control systems requiring wide supply voltage tolerance.
• Consumer electronics powered by varying battery levels.

Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm that the intended application does not require automotive qualification, as this component is designated for general industrial use. Check for end-of-life status or recommended new design warnings in the latest manufacturer documentation to ensure long-term availability for production cycles.

Selection Notes

Select this component when ground-referenced signal amplification is required within a wide single-supply voltage range. It is appropriate for designs prioritizing low power consumption over high-speed performance. Ensure the application environment stays within the specified industrial temperature limits and that the output drive requirements do not exceed the 30 mA per channel limit.

Part Context

This part belongs to the BA2904 series of standard ground sense operational amplifiers produced by ROHM Semiconductor. It serves as a dual-channel version within the broader family, which also includes quad-channel variants like the BA2902. The series is designed for cost-effective solutions in general-purpose analog signal processing tasks where input signals approach the negative supply potential.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative dual-channel op-amps based on pinout, electrical specifications, and package dimensions if substitution is necessary.