Original Part
Alternative Part
1. LM358ADR2G Substitution Conclusion
The LM358ADR2G can serve as a functional replacement for the original part, with key differences requiring attention: its input bias current (45 nA) is notably higher than that of the original (20 nA), which may introduce greater error in precision DC amplification applications. The gain bandwidth product (1 MHz) is slightly better, but the slew rate is unspecified—dynamic response should be verified against system requirements. With a wider supply voltage range (up to 32 V), comparable quiescent current per channel (800 µA), and pin-compatible packaging, it is suitable for non-precision, wide-voltage, or general signal conditioning applications. However, its impact on input current must be evaluated in high-impedance or precision measurement circuits.
2. LM258DG4 Substitution Conclusion
The LM258DG4 is an ideal drop-in replacement: both gain bandwidth product (1.1 MHz) and slew rate (0.3 V/µs) meet or exceed the original specifications, while input bias current (20 nA) remains identical. It offers a wider supply voltage range (up to 32 V) and significantly lower quiescent current per channel (500 µA), benefiting low-power designs. With fully compatible packaging and key parameters, the LM258DG4 provides enhanced performance across most applications and can replace the original part seamlessly without additional modifications.
Analysis ID: 658C-A7EA000
Based on part parameters and for reference only. Not to be used for procurement or production.
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