1. NCS20032DR2G Substitution Conclusion Overall feasible, it can serve as a high-performance, low-power direct replacement in most applications. Key differences are as follows: The NCS20032 has an input bias current (1 pA) one order of magnitude larger than the AD8602 (0.2 pA). This may introduce slightly higher input current error when handling extremely high output impedance signal sources (e.g., photodiodes), making it unsuitable for ultra-precision applications extremely sensitive to current error. However, its input offset voltage (500 µV) is significantly better than the AD8602's (1.3 mV), which benefits DC accuracy. Furthermore, the NCS20032 features lower quiescent current (275µA vs. 750µA per channel), higher slew rate (8V/µs vs. 6V/µs), greater output drive current (96mA vs. 50mA), and a wider minimum operating voltage (1.7V vs. 2.7V). These advantages enable it to significantly reduce system power consumption, improve large-signal response speed, drive heavier loads, and remain compatible with lower battery supply voltages.