BA2904YF-CE2

Overview

The BA2904YF-CE2 is a dual-channel automotive ground sense operational amplifier manufactured by ROHM Semiconductor. It operates within a supply voltage range of 3 V to 36 V and features a gain-bandwidth product of 500 kHz with a slew rate of 200 mV/us. Key electrical parameters include an input offset voltage of 2 mV, input bias current of 20 nA, and quiescent current of 500 uA per channel. The device delivers 30 mA output current per channel and offers a common-mode rejection ratio of 65 dB. It is housed in an SOP-8 package and certified to AEC-Q100 standards for automotive applications.

Feature Summary

• Ground sense architecture enabling operation with input voltages extending to the negative power rail.
• Automotive-grade reliability compliant with AEC-Q100 qualification standards.
• Low power consumption suitable for battery-operated systems.

Applications

• Current sensing in automotive battery management systems
• Sensor signal conditioning in vehicle electronics
• General-purpose amplification in automotive control units

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm lot traceability and AEC-Q100 certification status prior to integration. Ensure storage conditions comply with moisture sensitivity levels specified in the datasheet. Validate pinout compatibility during PCB layout finalization to prevent assembly errors.

Selection Notes

Select this component for designs requiring ground-referenced input capabilities in single-supply automotive environments. Consider the 500 kHz bandwidth and 200 mV/us slew rate for moderate-speed signal processing tasks. Evaluate the 30 mA output drive capability against load requirements. Verify thermal performance within the -40 C to +125 C operating range for harsh automotive conditions.

Part Context

This part belongs to ROHM's automotive operational amplifier family designed for robust performance in electric and hybrid vehicles. It serves as a specialized solution for low-side current sensing where inputs must approach the negative rail. The SOP-8 packaging facilitates surface-mount assembly in compact automotive electronic control units.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official ROHM resources for qualified alternatives if this NRND (Not Recommended for New Designs) component requires replacement.