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THVD1450: THVD1450 transmission distance

user4719845
Intellectual 315 points
Part Number: THVD1450

Dear Sir:

I want use THVD1450 for RS485 transmission, but I have a question.

If I input different volt(3.3V or 5V) to Port A Is the transmission distance different?

I use MAX13488E now I want replace THVD1450.

  • 0
    TI__Guru 53575 points
    Hi,

    The supply voltage at Vcc (3.3-V or 5-V) shouldn't have a significant impact on signal integrity when compared to other factors. This will however effect the available driver output current which could limit the number of devices that can be placed on the bus (Figure 3 on datasheet). A larger factor in determining max cable length is the data rate the system is operating at (Figure 21 on datasheet).

    Let me know if this helps.

    Regards,
    Eric