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AM26C31:About the rating of AM26C31

user802427
Prodigy 30 points
Part Number: AM26C31
Other Parts Discussed in Thread: AM26C32

AM26C31とAM26C32で通信しているのですが、誤って15Ωの終端抵抗を取り付けてしまいました。
この場合、AM26C31、AM26C32、終端抵抗(1/2W)のいずれかが破損するのでしょうか？
(絶対最大定格には[入力または出力クランプ電流]20mAとあるので問題ないと思います。)

  • 0
    Guru 269890 points

    The clamp current has nothing to do with this.

    The AM26C31's short-circuit current is guaranteed to be lower than its output current limit of 150 mA, so a 15 Ω termination will not damage it. I do not know if the actual output current is high enough to result in temperature problems.

    The AM26C32 wants a differential input voltage of at least ±0.1 V, so the current through the termination resistor must be at least 7 mA. So this will work.