Original Part
Alternative Part
1. ADM1485ARZ-REEL Substitution Conclusion
From a technical parameter and package compatibility perspective, the ADM1485ARZ-REEL can fully replace the original part SP485REN-L/TR. The differences lie in data rate (30 Mbps vs. 5 Mbps) and receiver hysteresis (70 mV vs. unspecified). The higher data rate of the ADM1485ARZ-REEL supports higher-speed communication scenarios, while the inclusion of receiver hysteresis improves signal noise immunity and enhances reliability in complex electromagnetic environments. Both devices share identical supply voltage range, pin package (8-SOIC), and protocol (RS-422/485 half-duplex). Therefore, the substitution is directly compatible with the existing hardware design and offers a significant performance improvement.
2. ADM1485ARZ-REEL7 Substitution Conclusion
The ADM1485ARZ-REEL7 has identical technical specifications to the ADM1485ARZ-REEL, including the 30 Mbps data rate and 70 mV receiver hysteresis. The suffix “REEL7” only indicates a difference in reel packaging specifications and does not affect electrical characteristics. Consequently, the substitution conclusion is the same as above: it can directly replace the original SP485REN-L/TR, offering advantages in communication speed and noise immunity. Users should note the potential impact of the packaging format on the production line assembly process, but there is no difference in electrical performance or pin compatibility.
Analysis ID: 9101-BAAA000
Based on part parameters and for reference only. Not to be used for procurement or production.
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