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Programmable Resolution 1-Wire Digital Thermometer

Programmable Resolution 1-Wire Digital Thermometer

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Since the operating current of the DS18B20 is up to 1.5 mA, the DQ line will not have sufficient drive due to the 5k pullup resistor. This problem is particularly acute if several DS18B20s are on the same DQ and attempting to convert simultaneously. There are two ways to assure that the DS18B20 has sufficient supply current during its active ...

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