Original Part
Alternative Part
1. LM2904S-13 Substitution Conclusion
The LM2904S-13 can largely serve as a drop-in replacement for the original part in terms of electrical performance. Key differences include: a higher slew rate (0.3 V/µs vs. 0.2 V/µs) and gain bandwidth product (700 kHz vs. 500 kHz), which benefit dynamic response; lower input bias current (20 nA vs. 45 nA), reducing input error; however, its higher quiescent current (700 µA vs. 500 µA) increases power consumption. The package width is slightly narrower (3.90 mm vs. 4.40 mm), so PCB layout compatibility should be verified. The supply voltage upper limit is extended to 36 V (original: 32 V), which has no impact if the application voltage remains within the original rating. Overall, the performance parameters are superior, but package fit and power dissipation acceptability must be confirmed.
2. LM2904FJ-E2 Substitution Conclusion
The LM2904FJ-E2 presents a viable substitution option. It shares the same manufacturer (Rohm) as the original part. Notable differences include: higher slew rate (0.3 V/µs) and gain bandwidth product (800 kHz); lower input bias current (20 nA) and improved input offset voltage (1 mV vs. 2 mV). Quiescent current is slightly higher (600 µA vs. 500 µA), though the impact is minimal. The package width is also 3.90 mm (original: 4.40 mm), requiring assessment of mechanical compatibility. The supply range remains identical (3 V to 32 V). In summary, electrical performance is notably enhanced, and sharing the same manufacturer offers greater supply chain stability. The primary constraint lies in the physical adaptation due to the reduced package footprint.
Analysis ID: 2B2A-0A6C000
Based on part parameters and for reference only. Not to be used for procurement or production.
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