User`s manual

NexSens Technology, Inc.
iSIC User‟s Manual 51
2.7 Thermistors
A thermistor can be connected to the iSIC through the analog terminal strip. Follow the
connection diagram below to properly connect your thermistor. The iSIC utilizes the Steinhart-
Hart equation for calculating temperature.
A single resistor across AGND and the analog input pin should be used to complete the equation.
The resistor size should be around the same size as the thermistor resistance at 25 C. For
example, a 10K Thermistor could use a 12.4K resistor. A 100K Thermistor could use a 100K
resistor. One thermistor can be connected to each analog input pin.