1. ADA4891-2ARMZ-RL Substitution Conclusion Direct substitution is not viable. This part can only be considered as an upgrade option in specific high-speed applications. Its core dynamic performance differs from the original part by orders of magnitude: its gain bandwidth product (105 MHz vs. 1 MHz) and slew rate (210 V/µs vs. 1 V/µs) are significantly higher than those of the LMV358. This enables it to handle high-frequency signals with excellent transient response. However, its quiescent current (4.4mA vs. 190µA) is also more than 20 times higher, which will substantially increase system power consumption. Furthermore, while its extremely low input bias current (2 pA) is advantageous for applications requiring high input impedance, the high bandwidth may introduce oscillation risks in circuits originally stable with the LMV358. Compensation and layout would require re-evaluation.