Original Part
Alternative Part
1. LM258DG4 Substitution Conclusion
The LM258DG4 can serve as a replacement for the BA2904F-E2, though key differences must be considered. It offers higher gain-bandwidth product (1.1 MHz vs. 500 kHz) and slew rate (0.3 V/µs vs. 0.2 V/µs), providing superior high-frequency signal handling and transient response. However, its input offset voltage is slightly larger (3 mV vs. 2 mV), which may affect applications with stringent DC accuracy requirements. Additionally, the package width differs (3.90mm vs. 4.40mm), so PCB layout compatibility should be verified. Provided that supply range, quiescent current, and output current (40 mA vs. 30 mA, offering stronger drive capability) meet system requirements, substitution is feasible if the application can tolerate the slightly higher offset error and accommodate the package difference.
2. LM258DRG4 Substitution Conclusion
The LM258DRG4 is also a viable substitute for the BA2904F-E2, with similar trade-offs. It retains an advantage in gain-bandwidth product (700 kHz vs. 500 kHz) and slew rate (0.3 V/µs vs. 0.2 V/µs), delivering improved bandwidth and response speed compared to the original part. The input offset voltage is again higher (3 mV vs. 2 mV), which may necessitate calibration in precision DC applications. The package width difference (3.90mm vs. 4.40mm) likewise requires assessment for mechanical compatibility. Given that its supply characteristics match those of the original part and it provides stronger output current (40 mA), the substitution is workable in applications where offset voltage is not critical and the package can be accommodated.
Analysis ID: 7903-AFB1000
Based on part parameters and for reference only. Not to be used for procurement or production.
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