1. AD8058ARZ-REEL7 Substitution Conclusion From an architecture and package perspective, the AD8058, as a voltage-feedback amplifier, is a direct architectural substitute for the MAX412 and offers a wider supply range (3V to 12V). However, there are significant differences in its core parameters. The AD8058's bandwidth (325 MHz) and slew rate (1150 V/µs) far exceed those of the original part (28 MHz, 4.5 V/µs), making it an ultra-high-speed op-amp. This performance comes at the cost of a significantly worse input offset voltage (1 mV vs. 120 µV) and a quiescent current (14 mA) several times higher. This part can only be considered as a substitute in applications requiring extremely high speed where DC precision and power consumption are not critical. For the general-purpose, medium-speed, medium-to-high-precision applications originally served by the MAX412, direct substitution is generally not viable due to its poor DC precision and high power consumption, potentially leading to degraded accuracy, excessive power draw, or stability issues.