LAN DS18B20 Temperature Monitor Resistors Scheme

 

 

KMtronic Temperature Monitor

 

For complicated or long wire lines, if it is necessary,
there are two variants for compensation as shown on the figure below:

First one:
To connect parallel resistor 4.7k between +5V and 1W pin of 3pin plug-in (variant 1 of the scheme).

Second one:
To make RC filter like it's shown at variant 2 of the scheme.
You can try with 470pf and 62 or 100 Ohms resistor.

You can try variant 1 first, if there's no success - variant 2.
You can combine variant 1 and 2 but connect parallel resistor before RC filter.

 

More information

www.maximintegrated.com/en/app-notes/index.mvp/id/148

 

 

 

 

 

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