1. LM358ADR Substitution Conclusion This substitution is highly feasible and represents a direct replacement with comparable performance. However, minor differences in supply voltage limits and power consumption must be noted. The LM358ADR and the original BA2904SF-E2 share highly overlapping core specifications: both are dual, low-power, general-purpose op-amps with identical input offset voltage, minimum operating voltage, and fundamental architecture. The key differences are: 1) Its maximum supply voltage is 30V, lower than the original part's 32V. Direct substitution is not recommended in applications operating near the 32V limit. 2) Its slew rate (0.3V/µs) and gain-bandwidth product (700kHz) are slightly better than the original part's, implying a minor improvement in dynamic response and small-signal bandwidth, which is generally beneficial. 3) Its package width (3.90mm) is slightly narrower than the original part's SOP package (4.40mm). This may require pad compatibility evaluation or minor layout adjustments on the PCB. Overall, for standard circuits operating within 30V, the LM358ADR is a widely available, well-matched, and high-quality alternative.