LM50C
Description
The LM50 is a precision integrated-circuit temperature sensor that can sense a b40 C to a 125 C temperature range using a single positive supply The LM50’s output voltage is linearly proportional to Celsius (Centigrade) temperature ( a 10 m V C) and has a DC offset of a 500 m V The offset allows reading negative temperatures without the need for a negative supply The ideal output voltage of the LM50 ranges from a 100 m V to a 1 75V for a b40 C to a 125 C temperature range The LM50 does not require any external calibration or trimming to provide accuracies of g 3 C at room temperature and g 4 C over the full b40 C to a 125 C temperature range Trimming and calibration of the LM50 at the wafer level assure low cost and high accuracy The LM50’s linear output a 500 m V offset and factory calibration simplify circuitry required in a single supply environment where reading negative temperatures is required Because the LM50’s quiescent current is less than 130 m A self-heating is...
