1. Substitution Conclusion for AS358MTR-E1 From the perspective of core electrical parameters and package, the AS358MTR-E1 can serve as a pin-to-pin replacement for the LM2904FJ-E2. It offers advantages in its wider supply voltage range (36V vs. 32V) and stronger output drive capability (40mA vs. 30mA). However, key technical differences exist. The AS358MTR-E1 does not specify its slew rate and gain-bandwidth product (GBWP). Consequently, its large-signal response speed and high-frequency small-signal amplification capability are likely significantly inferior to the original part (the LM2904 specifies 0.3V/µs and 800kHz). This makes it unsuitable for circuits demanding bandwidth or speed. Furthermore, its input offset voltage (2mV) is double that of the original part (1mV), which will introduce greater error in amplification circuits requiring high DC precision, such as sensor signal conditioning. For general-purpose applications involving DC or low-frequency signals where precision is not critical—such as comparators or signal buffers—substitution is viable. However, careful evaluation is required for applications involving AC signal amplification, pulse processing, or precision amplification.