SM73710

SM73710 2.7V, SOT-23 Temperature Sensor SM73710 October 5, 2011 2.7V, SOT-23 Temperature Sensor General Description The SM73710 is a precision integrated-circuit temperature sensor that can sense a −40°C to +125°C temperature range while operating from a single +2.7V supply. The SM73710's output voltage is linearly proportional to Celsius (Centigrade) temperature (+6.25 mV/°C) and has a DC offset of +424 mV. The offset allows reading negative temperatures without the need for a negative supply. The nominal output voltage of the SM73710 ranges from +174 mV to +1205 mV for a −40°C to +125°C temperature range. The SM73710 is calibrated to provide accuracies of ±2.0°C at room temperature and ±4°C over the full −40°C to +125°C temperature range. The SM73710's linear output, +424 mV offset, and factory calibration simplify external circuitry required in a single supply environment where reading negative temperatures is required. Because the SM73710's quiescent current is less than 110 μA, self-heating is limited to a very low 0.1°C in still air in the SOT-23 package. Shutdown capability for the SM73710 is intrinsic because its inherent low power consumption allows it to be powered directly from the output of many logic gates. Features ■ Renewable Energy Grade ■ Calibrated linear scale factor of +6.25 mV/°C ■ Rated for full −40°C to +125°C range ■ Suitable for remote applications ■ Available in SOT-23 package Applications ■ Photovoltaic Electronics ■ Cellular Phones ■ Computers...