Temp Sensor Analog 3-Pin SOT-23 T/R

The LM50/LM50-Q1 is a precision integrated-circuit temperature sensor that can sense a -40°C to +125°C temperature range using a single positive supply. The LM50/LM50-Q1’s output voltage is linearly proportional to Celsius (Centigrade) temperature (+10 mV/°C) and has a DC offset of +500 mV. The offset allows reading negative temperatures without the need for a negative supply. The ideal output voltage of the LM50/LM50-Q1 ranges from +100 mV to +1.75V for a -40°C to +125°C temperature range. The LM50/LM50-Q1 does not require any external calibration or trimming to provide accuracies of ±3°C at room temperature and ±4°C over the full -40°C to +125°C temperature range. Trimming and calibration of the LM50/LM50-Q1 at the wafer level assure low cost and high accuracy. The LM50/LM50-Q1’s linear output, +500 mV offset, and factory calibration simplify circuitry required in a single supply environment where reading negative temperatures is required. Because the LM50/LM50-Q1"s quiescent current is less than 130 ’A, self-heating is limited to a very low 0.2°C in still air.

Calibrated Directly in Degree Celsius (Centigrade)

Linear + 10.0 mV/°C Scale Factor

±2°C Accuracy Specified at +25°C

Specified for Full -40° to +125°C range

Suitable for Remote Applications

Low Cost Due to Wafer-level Trimming

Operates from 4.5V to 10V

Less than 130 µA Current Drain

Low Self-heating, Less than 0.2°C in Still Air

Nonlinearity Less than 0.8°C Over Temp

LM50Q is AEC-Q100 Grade 1 qualified and is
manufactured on an Automotive Grade flow.

UL Recognized Component