TI LM50CIM3/NOPB

The LM50 and LM50-Q1 devices are precision integrated-circuit temperature sensors that can sense a -40℃ to 125℃ temperature range using a single positive supply. The output voltage of the device is linearly proportional to temperature (10 mV/℃) 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 or LM50-Q1 ranges from 100 mV to 1.75 V for a -40℃ to 125℃ temperature range. The LM50 and LM50-Q1 do not require any external calibration or trimming to provide accuracies of ±3℃ at room temperature and ±4℃ over the full -40℃ to 125℃ temperature range. Trimming and calibration of the LM50 and LM50-Q1 at the wafer level assure low cost and high accuracy. The linear output, 500 mV offset, and factory calibration of the LM50 and LM50-Q1 simplify the circuitry requirements in a single supply environment where reading negative temperatures is necessary. Because the quiescent current of the LM50 and LM50-Q1 is less than 130 μA, self-heating is limited to a very low 0.2℃ in still air.

• LM50-Q1 is AEC-Q100 Grade 1 Qualified and is Manufactured on an Automotive Grade Flow
• Calibrated Directly in Degrees Celsius (Centigrade)
• Linear + 10 mV/℃ Scale Factor
• ±2℃ Accuracy Specified at 25℃
• Specified for Full -40℃ to 125℃ Range
• Suitable for Remote Applications
• Low Cost Due to Wafer-Level Trimming
• Operates From 4.5 V to 10 V
• Less Than 130 μA Current Drain
• Low Self-Heating: Less Than 0.2℃ in Still Air
• Nonlinearity Less Than 0.8℃ Over Temp
• UL Recognized Component

• Automotive
• Computers Disk Drives
• Battery Management
• FAX Machines
• Printers
• Portable Medical Instruments
• HVAC Power Supply Modules