Original Part
Alternative Part
1. ADM3075EYRZ-REEL7 Substitution Conclusion
Direct substitution is not viable. The maximum data rate of the ADM3075EYRZ-REEL7 is only 500 kbps, significantly lower than the original SP3494EN-L/TR's 2.5 Mbps. This represents the most critical technical discrepancy. If the original system operates at or near 2.5 Mbps, the substitution will result in communication failure or severe bit errors due to insufficient bandwidth. Although its receiver hysteresis (100 mV) is notably higher than the original's (20 mV), offering superior noise immunity, this advantage cannot compensate for the severe degradation in the core performance metric. Consequently, it is only suitable for low-speed applications where data rate is not a critical requirement.
2. ADM3078EYRZ-REEL7 Substitution Conclusion
This device demonstrates excellent feasibility for direct substitution. The ADM3078EYRZ-REEL7 is superior or fully compatible with the original part across key electrical parameters: its data rate of up to 16 Mbps far exceeds the original's 2.5 Mbps, providing ample communication bandwidth and complete performance coverage for the original requirements. Furthermore, its receiver hysteresis (100 mV) is five times that of the original (20 mV). In harsh bus environments characterized by common-mode noise or signal ringing, this provides significantly enhanced noise rejection and more stable signal detection, thereby improving overall system robustness. Both devices share identical supply voltage ranges and package footprints, enabling a pin-to-pin replacement.
Analysis ID: 2DBF-B3AF000
Based on part parameters and for reference only. Not to be used for procurement or production.
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