Original Part
Alternative Part
1. BA2904FVM-TR Substitution Conclusion
The BA2904FVM-TR can serve as a functional replacement for the LM2904TH-13 in basic applications, but key performance differences must be considered. Its slew rate (0.2 V/µs) and gain-bandwidth product (500 kHz) are lower than those of the original part (0.3 V/µs, 700 kHz), which reduces high-frequency signal response and bandwidth capability, potentially affecting dynamic accuracy or filter performance. The lower output current (30 mA) limits drive capability, while the maximum operating voltage (32 V) is slightly lower but still covers most general-purpose scenarios. Additionally, the device comes in a smaller 8-MSOP package (2.80 mm width). If the original design uses an 8-TSSOP (4.40 mm width), PCB layout compatibility must be verified. In summary, this substitute is suitable only for mid-to-low frequency circuits with relaxed bandwidth, slew rate, and drive requirements, and voltage headroom and thermal conditions should be evaluated.
2. LM2904PW Substitution Conclusion
The LM2904PW is a viable direct replacement, as its key parameters closely match those of the original part. The slew rate (0.3 V/µs) and gain-bandwidth product (700 kHz) are identical, ensuring equivalent high-frequency performance. Output current (40 mA) and package (8-TSSOP) are also fully compatible, allowing drop-in replacement. The main differences are a slightly higher input offset voltage (3 mV vs. 2 mV), which may have a minor impact in applications demanding very high DC precision (such as microvolt-level sensor amplification), and a lower maximum operating voltage (26 V vs. 36 V). If the original circuit operates near the upper voltage limit, derating is necessary. Overall, except for high-voltage or ultra-high-precision applications, this substitute is compatible with most general-purpose amplifier circuit designs.
Analysis ID: D171-19EF000
Based on part parameters and for reference only. Not to be used for procurement or production.
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