The LM50 and LM50-Q1 devices are precision integrated-circuit temperature sensors that can sense a –40°C to 125°C temperature range using a single positive supply. The output voltage of the device is linearly proportional to 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 or LM50-Q1 ranges from 100 mV to 1.75 V for a –40°C to 125°C temperature range. The LM50 and LM50-Q1 do 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 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°C 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/°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 4.5 V to 10 V
• Less than 130-A Current Drain
• Low Self-Heating: Less than 0.2°C in Still A
• Nonlinearity Less than 0.8°C Over Temp
• UL Recognized Component

• Local sensor accuracy (Max) (+/- C)
• 2
• Operating temperature range (C)
• -40 to 125
• Supply voltage (Min) (V)
• 4.5
• Supply voltage (Max) (V)
• 10
• Supply current (Max) (uA)
• 130
• Interface type
• Analog output
• Sensor gain (mV/Deg C)
• 10
• Rating
• Automotive
• Features
• UL recognized
• TI functional safety category
• Functional Safety-Capable

LM50-Q1的完整型号有：LM50QIM3/NOPB、LM50QIM3X/NOPB，以下是这些产品的关键参数及官网采购报价：

LM50QIM3/NOPB，工作温度：-40 to 125，封装：SOT-23 (DBZ)-3，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM50QIM3/NOPB的批量USD价格：.632（1000+）

LM50QIM3X/NOPB，工作温度：-40 to 125，封装：SOT-23 (DBZ)-3，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM50QIM3X/NOPB的批量USD价格：.54（1000+）