1. OPA2674IDR Substitution Conclusion The OPA2674IDR can electrically replace the original LT1396CS8TRPBF, provided the application’s tolerance to key differences is carefully evaluated. The differences are as follows: First, the OPA2674IDR’s bandwidth (260 MHz) is lower than that of the original part (400 MHz); in high‑frequency signal‑processing or high‑gain applications, this may reduce overall system bandwidth and signal fidelity. Second, its slew rate (2000 V/µs) is substantially higher than the original’s (800 V/µs), which represents a beneficial upgrade for high‑speed large‑signal handling. Third, its output current capability (500 mA) is significantly greater than the original’s (80 mA), enabling direct driving of heavier loads such as cables or multiple ADCs. Fourth, its quiescent current (18 mA per channel) is much higher than the original’s (4.6 mA per channel), leading to noticeably increased system power dissipation and heat generation. Fifth, its minimum operating voltage is 5 V, whereas the original can operate down to 4 V, limiting its use in low‑voltage scenarios such as single‑cell Li‑ion battery applications. Substitution is feasible in non‑battery‑powered applications where power consumption is not critical and high output drive or very high slew rate is required. However, in designs strictly dependent on the original bandwidth or demanding low power consumption, the replacement may fail to meet performance targets.