Original Part
Alternative Part
1. SN75176ADG4 Substitution Conclusion
The SN75176ADG4, as a direct drop-in replacement from the same manufacturer (TI), is fully compatible with the DS3695AM/NOPB in terms of basic functionality, package (8-SOIC), supply voltage (4.75V–5.25V), and protocol (RS-422/485 half-duplex). However, its receiver hysteresis is 50mV, which is lower than the original part’s 70mV, resulting in slightly weaker noise immunity. This may lead to a marginal increase in bit error rate in electrically noisy environments. It is suitable for general industrial or communication applications. If the original design does not require high noise margin, the SN75176ADG4 can be used directly without modifying the external circuitry.
2. SP3088EEN-L/TR Substitution Conclusion
The SP3088EEN-L/TR is compatible in package (8-SOIC) and protocol (RS-422/485 half-duplex). Key differences include: a receiver hysteresis of 100mV (higher than the original part’s 70mV), providing stronger noise immunity; a clearly specified data rate of 20Mbps, which may exceed the unspecified rate of the original part; and a wider supply voltage range (4.5V–5.5V), offering better adaptability. The SP3088EEN-L/TR performs more reliably in high-speed, high-noise environments. However, attention should be paid to whether its output drive characteristics fully match the original circuit. It is recommended to verify signal integrity and termination before substitution. Overall, it can serve as a direct replacement in most applications with improved performance.
Analysis ID: 579D-29AB000
Based on part parameters and for reference only. Not to be used for procurement or production.
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