BA2902SKN-E2

Overview

The BA2902SKN-E2 is a quad general-purpose operational amplifier manufactured by Rohm Semiconductor. It features four independent circuits within a single package, offering a gain-bandwidth product of 500 kHz and a slew rate of 0.2 V/µs. The device specifies an input bias current of 20 nA and a maximum input offset voltage of 2 mV. It operates on supply voltages ranging from 3 V to 36 V (single) or ±1.5 V to ±18 V (dual). The component supports surface mount installation and functions reliably across an operating temperature range of -40°C to +105°C.

Feature Summary

• Quad configuration providing four independent operational amplifiers in one package
• Ground-sense capability allowing input signals near the negative rail
• Wide single-supply voltage operation supporting low-voltage systems
• High input impedance with low input bias current for minimal signal loading

Applications

• Audio signal conditioning and pre-amplification stages
• General-purpose instrumentation circuits
• Active filter designs requiring moderate bandwidth
• Signal buffering and isolation in sensor interfaces

Procurement Notes

Verify the exact suffix E2 against the manufacturer's latest datasheet to confirm lead-free compliance and specific tape-and-reel specifications. Confirm that the SOP-14 package dimensions match your PCB footprint requirements. Ensure the operating temperature range of -40°C to +105°C meets your environmental design constraints before finalizing procurement.

Selection Notes

Select this component when a quad op-amp solution is required for space-constrained designs. It is suitable for applications needing ground-referenced inputs without complex level shifting. Consider its 500 kHz bandwidth limit; it may not be appropriate for high-frequency signal processing compared to faster alternatives. Verify power supply stability within the 3 V to 36 V range for optimal performance.

Part Context

This part belongs to the BA2902 series of general-purpose operational amplifiers from Rohm Semiconductor. The series is designed for cost-effective, high-volume applications requiring multiple amplifier channels. The SKN-E2 designation indicates a specific surface-mount package variant optimized for automated assembly processes in consumer and industrial electronics manufacturing.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Rohm documentation for direct pin-compatible replacements or functional equivalents.