Cable Simulation 2

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Dallas technical support said that if the thermometers were damaged during communication, it was most likely due to a feature of the DS2490 chip; in order to speed up the recharging of the wire, when the voltage reaches a critical level between 0.25 and 1.1 volts, the DS2490 will turn on a strong current to charge the line more quickly. Compare this to the previous simulation:

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