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Original Part

1/1 Transceiver Half RS422, RS485 8-SOIC

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Alternative Part

1/1 Transceiver Half RS422, RS485 8-SOIC

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1/1 Transceiver Half RS422, RS485 8-SOIC

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1. ADM3075EYRZ-REEL7 Substitution Conclusion Direct substitution is not recommended. While its supply voltage and package are compatible with the original part, the key discrepancy lies in its data rate (500 kbps), which is significantly lower than the original’s 2.5 Mbps. This means if the original system operates above 500 kbps, the replacement will fail to function. Its advantage is a receiver hysteresis of 100 mV, considerably higher than the original’s 20 mV, indicating stronger noise immunity and more stable signal recognition under similar noise conditions. However, this benefit does not outweigh the system-level risk introduced by the insufficient data rate.
2. ADM3078EYRZ-REEL7 Substitution Conclusion This device is recommended as a high-performance alternative. It is fully compatible in basic specifications such as supply voltage and package, and its key performance parameters either exceed or match those of the original part. The data rate (16 Mbps) is far higher than the original’s 2.5 Mbps, providing substantial communication bandwidth margin that not only meets the original design requirements but also leaves ample room for future upgrades. Additionally, its receiver hysteresis (100 mV) is significantly greater than the original’s 20 mV, delivering superior noise immunity and communication reliability in complex electromagnetic environments. This makes it an upgraded alternative offering improvements in both speed and robustness.
Analysis ID: 84E9-B799000
Based on part parameters and for reference only. Not to be used for procurement or production.
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