Can anyone help me with the formula to calculate the temperature in celsius ?
I´m using a lm335 as temperature sensor in a voltage divider just like attached
Except the static resistor is a 2200 ohm.
My sensor is at this time placed just next to an official phidgets temperature sensor.
The raw phidgets sensor value is 280 ((280 - 200) / 4= 20 degrees)
The raw lm335 sensor value is 568 (at the 20 degree temperature.)
The lm335 is: Operating as a 2-terminal zener,the LM135 has a breakdown voltage directly proportional to absolute temperature at +10 mV/°K. (from the datasheet)
Thanks in advance.