Original Part
Alternative Part
1. SN75HVD1176D Substitution Conclusion
The SN75HVD1176D is not a direct substitute for the ADM3485EARZ-REEL7, due to differences in supply voltage and receiver hysteresis. The SN75HVD1176D operates from 4.75 V to 5.25 V (5 V system), whereas the original part is rated for 3 V to 3.6 V (3.3 V system). This voltage incompatibility could prevent proper operation or cause damage. Its receiver hysteresis is 40 mV, lower than the original’s 50 mV, resulting in slightly weaker noise immunity in electrically noisy environments. However, the SN75HVD1176D supports a data rate of 40 Mbps, significantly higher than the original’s 10 Mbps. It may be considered only in systems that require higher speed and can accommodate a 5 V supply.
2. LTC1484IS8TRPBF Substitution Conclusion
The LTC1484IS8TRPBF is compatible with the ADM3485EARZ-REEL7 in terms of supply voltage, but it imposes key performance limitations. Both devices operate from 4.75 V to 5.25 V (5 V system), which is not compatible with the original 3.3 V supply—system power adaptation would be necessary for direct replacement. Its data rate is only 4 Mbps, well below the original’s 10 Mbps, potentially making it unsuitable for high‑speed communication applications. Additionally, the receiver hysteresis is 30 mV, lower than the original’s 50 mV, reducing tolerance to electromagnetic noise. Therefore, this substitute is only recommended for low‑speed, low‑noise designs that can accept a 5 V supply.
Analysis ID: 7FDE-3C80000
Based on part parameters and for reference only. Not to be used for procurement or production.
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