1. AD5247BKSZ10-RL7 Substitution Conclusion Direct substitution is not feasible. The most critical discrepancy lies in the nominal resistance value: the original part is 100 kΩ, whereas this device is 10 kΩ—a full order of magnitude difference. This will directly alter the circuit's voltage division ratio, bias current, or gain setting, fundamentally shifting the system's operating point. Functional equivalence cannot be achieved unless the target application is insensitive to absolute resistance values and allows for a complete redesign of the surrounding circuitry. Secondary differences include a superior temperature coefficient (45 ppm/°C vs. 150 ppm/°C), resulting in less resistance variation and better stability over temperature, and a higher minimum operating voltage (2.7V vs. 1.8V), rendering it non-functional in the low-voltage range of 1.8V to 2.7V.