The LM60 device is a precision integrated circuit temperature sensor that can sense the temperature range from −40°C to +125°C while operating from a single 2.7v power supply. The device's output voltage is linearly proportional to Celsius (6.25 mV/°C) and has a DC bias of 424 mV. The offset allows negative temperatures to be read without the need for a negative power source. The nominal output voltage ranges from 174 mV to 1205mv when the temperature ranges from −40 ° C to +125 ° C.
Simplified Schematic
The device is calibrated to provide accuracy of ±2°C at room temperature and ±3°C over the entire temperature range from −25°C to +125°C. The device's linear output, 424mv bias, and factory calibration simplify the external circuitry required in single-power environments where negative temperatures need to be read.
Celsius temperature controller application
Since the static current of the device is less than 110μA, the self-heating temperature in the SOT-23 package is limited to a very low 0.1°C. The shutdown capability of the device is inherent in that its inherent low power consumption allows it to be powered directly from the output of many logic gates.
Functional Block Diagram
