The LM62 is a precision integrated-circuit temperature sensor that can sense a 0°C to
+90°C temperature range while operating from a single +3.0V supply. The LM62's output voltage is
linearly proportional to Celsius (Centigrade) temperature (+15.6 mV/°C) and has a DC offset of
+480 mV. The offset allows reading temperatures down to 0°C without the need for a negative supply.
The nominal output voltage of the LM62 ranges from +480 mV to +1884 mV for a 0°C to +90°C
temperature range. The LM62 is calibrated to provide accuracies of ±2.0°C at room temperature and
+2.5°C/−2.0°C over the full 0°C to +90°C temperature range.
The LM62's linear output, +480 mV offset, and factory calibration simplify external
circuitry required in a single supply environment where reading temperatures down to 0°C is
required. Because the LM62's quiescent current is less than 130 μA, self-heating is limited to a
very low 0.2°C in still air. Shutdown capability for the LM62 is intrinsic because its inherent low
power consumption allows it to be powered directly from the output of many logic gates.
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