Original Part
Alternative Part
1. LM358PW Substitution Conclusion
The LM358PW exhibits certain deviations in key electrical parameters compared to the original LM2904PT. Its slew rate (0.3 V/µs) is only half that of the original (0.6 V/µs), significantly reducing its response speed to high-frequency signals, which may render it unsuitable for applications requiring fast transient response. Additionally, its gain bandwidth product (700 kHz) is slightly lower than the original (800 kHz), affecting its ability to amplify small high-frequency signals. Furthermore, its input offset voltage (3 mV) is higher than the original (2 mV), potentially leading to slightly degraded DC accuracy. However, both devices share the same supply range (3–30 V), input bias current (20 nA), and package (8-TSSOP). The LM358PW also offers lower quiescent current (500 µA) and stronger output drive capability (40 mA). If the application does not demand high slew rate or bandwidth and can tolerate slightly higher input offset, the LM358PW can serve as a substitute, though its dynamic performance limitations must be considered.
2. BA2904SFV-E2 Substitution Conclusion
The BA2904SFV-E2 shows significantly weaker key dynamic parameters compared to the original device. Its slew rate (0.2 V/µs) is only one-third of the original, and its gain bandwidth product (500 kHz) is substantially lower (original: 800 kHz). This results in insufficient performance when processing high-frequency or fast-changing signals, potentially causing distortion or response delay. Although its input offset voltage (2 mV) matches the original, its supply voltage upper limit is slightly higher (32 V), and it features lower quiescent current (500 µA). However, it comes in an 8-LSSOP package, which is similar in size to TSSOP but may differ in pin form. Overall, unless the application involves only low-frequency, low-speed signals and the package is compatible, direct substitution with the BA2904SFV-E2 is generally not recommended due to its significant dynamic performance gap. Careful evaluation is advised, especially in AC signal conditioning applications.
Analysis ID: 36B2-B9B5000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com