Original Part
Alternative Part
1. LM258DRG4 Substitution Conclusion
From the perspective of key electrical parameters and package, the LM258DRG4 can essentially serve as a pin-to-pin direct replacement, with several performance metrics surpassing those of the original part. The differences are as follows: a higher gain-bandwidth product (700kHz vs. 500kHz) and slew rate (0.3V/µs vs. 0.2V/µs) enable faster signal response and processing, making it suitable for higher-frequency applications; a lower input bias current (20nA vs. 45nA) is beneficial for measuring high-impedance signal sources and can reduce error; a higher output drive current (40mA vs. 20mA) provides stronger load-driving capability. Its input offset voltage is slightly higher (3mV vs. 2mV), which may necessitate additional calibration in applications demanding extremely high DC precision. Provided the application circuit operates within the common supply voltage range of 3V to 32V and is not sensitive to the 2mV vs. 3mV offset voltage difference, the LM258DRG4 represents a qualified substitute with enhanced performance.
2. LM2904DRG4 Substitution Conclusion
The LM2904DRG4 shares most electrical parameters with the LM258DRG4. However, its substitution for the original part BA10358F-E2 introduces a key limitation: maximum supply voltage. Its supply voltage range has an upper limit of 26V, which is lower than the original part's 32V. If the original design or application scenario involves an operating voltage or potential voltage transients exceeding 26V, using the LM2904DRG4 carries a risk of overvoltage damage. Aside from this, it shares the same performance advantages (higher bandwidth, slew rate, lower bias current, stronger output drive) and the same disadvantage (slightly higher offset voltage) as the LM258DRG4. The LM2904DRG4 can only be considered a viable substitute if it is confirmed that the system's maximum operating voltage never exceeds 26V. Otherwise, the LM258DRG4 or another part with a compatible supply range should be selected.
Analysis ID: 986B-F338000
Based on part parameters and for reference only. Not to be used for procurement or production.
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