LM2902WYDT Substitution Conclusion The LM2902WYDT can serve as a replacement for the MC3403D, offering overall superior performance and automotive-grade reliability, though its slightly lower slew rate should be taken into account. Key differences include: input bias current reduced from 200 nA to 20 nA, resulting in lower input error and higher precision; supply current per channel lowered from 2.8 mA to 1.5 mA, significantly reducing power consumption; output current increased from 30 mA to 40 mA, providing stronger drive capability; slew rate decreased from 0.6 V/µs to 0.4 V/µs, which may limit high‑frequency signal processing; and supply voltage range extended down to 3 V minimum, supporting wider low‑voltage applications. Additionally, its automotive qualification (AEC‑Q100) ensures higher environmental robustness and reliability, making it suitable for demanding environments such as automotive or industrial applications. LM2902EDR2G Substitution Conclusion The LM2902EDR2G may be considered as a potential replacement for the MC3403D, but careful verification of unspecified parameters is advised due to unclear dynamic performance specifications. Notable differences include: input bias current reduced from 200 nA to 90 nA, improving input characteristics; output current increased from 30 mA to 40 mA, enhancing drive capability; and supply voltage range widened to a minimum of 3 V and a maximum of 32 V, offering greater power‑supply flexibility. Slew rate and gain‑bandwidth product are not specified, which could impact high‑frequency or fast‑response applications. It is recommended to review the full datasheet to ensure compatibility with the original part’s performance requirements.