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