Original Part
Alternative Part
1. ADM488ARZ-REEL Substitution Conclusion
Not a direct substitute. The ADM488ARZ-REEL is designed for full-duplex operation, whereas the original part is half-duplex, requiring a redesign of the circuit connections (full-duplex requires separate transmit and receive channels). Its data rate is limited to 250 kbps, significantly lower than the original’s 20 Mbps, making it unsuitable for high-speed communication. The supply voltage range is only 4.5 V to 5.5 V, narrower than the original’s 3 V to 5.5 V, which restricts its use in low-voltage applications. Additionally, the receiver hysteresis (70 mV) is relatively low, resulting in weaker noise immunity. These differences will degrade system performance or cause compatibility issues. This substitute is only suitable for low-speed, full-duplex applications with fixed voltage requirements.
2. ADM483EARZ-REEL Substitution Conclusion
Conditional substitute; system requirements must be evaluated. This model shares the same half-duplex interface as the original, offering good pin compatibility. However, its data rate is also limited to 250 kbps and cannot support 20 Mbps high-speed transmission. The supply range of 4.5 V to 5.5 V is narrower than the original’s, making it unsuitable for 3 V to 3.3 V low-voltage systems. The receiver hysteresis (70 mV) is low, which may increase the bit error rate in noisy environments. If the actual application has relaxed requirements for speed, voltage range, and noise immunity, and the pin functions are compatible, substitution may be considered. Otherwise, communication reliability may be compromised.
Analysis ID: A6FB-B3DB000
Based on part parameters and for reference only. Not to be used for procurement or production.
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