2. BU7486F-E2 Substitution Conclusion Substitution is possible in specific scenarios where power consumption and output drive capability are not primary concerns. The BU7486F-E2 significantly outperforms the original LMV358 in small‑signal bandwidth (10 MHz) and slew rate (10 V/µs), providing better high‑frequency response and transient performance. Its CMOS technology also delivers extremely low input bias current (1 pA), which benefits high‑precision DC applications. However, its quiescent current is as high as 6 mA (about 14× that of the LMV358), which would substantially reduce battery life in portable applications. Moreover, its output current capability (12 mA) is only 30 % of the original part; if the original circuit drives a relatively low‑impedance load, this may cause output distortion or clipping. This device is suitable for circuit upgrades where the load in the signal chain is light, power consumption is not critical, and higher speed or better DC accuracy is required.