Original Part
Alternative Part
1. ADM487EWARZ Substitution Conclusion
The ADM487EWARZ is not recommended as a direct substitute for the ISL32478EIBZ-T, primarily due to key parameter mismatches. Its data rate is limited to 250 kbps (compared to 15 Mbps for the original part), which cannot meet high-speed communication requirements. The supply voltage range is also narrower (4.75 V to 5.25 V), resulting in poorer compatibility. Although it offers 70 mV of hysteresis (superior to the original part's 25 mV) and automotive-grade qualification, the overall performance is significantly downgraded. This device is only suitable for low-speed, high-noise-immunity industrial or automotive applications with tight supply voltage control. Substitution may be considered with caution only if the system has low data rate requirements and precisely regulated power supply.
2. ADM487EWARZ-REEL7 Substitution Conclusion
The ADM487EWARZ-REEL7 is electrically identical to the ADM487EWARZ, differing only in packaging format (Reel7 tape-and-reel). Therefore, the substitution conclusion remains the same: it is not suitable for high-speed communication applications. The 250 kbps data rate limitation and lack of wide supply voltage adaptability remain the key constraints; the packaging variation only affects production pick-and-place efficiency. If the original design does not require 15 Mbps high-speed operation and can tolerate tighter supply voltage tolerances, substitution may be possible, but system stability must be verified. Otherwise, it is advisable to select a model with a matching data rate specification.
Analysis ID: 0B9D-F758000
Based on part parameters and for reference only. Not to be used for procurement or production.
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