In Stock ! Texas Instruments Board Mount Temperature Sensors LM50CIM3

±2°C analog output temperature sensor, with 10mV/°C gain

Features：

Quality information

Packaging information

Features for the LM50

• Industry-Standard Sensor Gain/Offset:

• 10mV/°C, 500mV at 0°C

• LM50B Temperature Accuracy:

• ±2°C (Max) at 25°C

• ±3°C (Max) over temperature range

• LM50C Temperature Accuracy:

• ±3°C (Max) at 25°C

• ±4°C (Max) over temperature range

• Operating supply range: 4.5V to 10V

• Quiescent Current (Typ): 95µA

• Available in Standard SOT23-3 package

• Nonlinearity: ±0.8°C (Max)

• DC Output Impedance: 2kΩ/4kΩ (typ/Max)

• Enables driving large capacitive loads

• UL Recognized Component

Description for the LM50

The LM50 device is a precision analog temperature sensor that can measure temperatures from -40°C to 125°C using a single positive supply. The output voltage of the device is linearly proportional to temperature (10mV/°C) and has a DC offset of 500mV at 0°C. The offset allows reading negative temperatures without the need for a negative supply. The output voltage of the LM50 ranges from 100mV (at –40°C) to 1.75V (at 125°C), simplifying analog-to-digital converter (ADC) interfacing.

Unlike NTC thermistors, LM50 does not require any external calibration, trimming or software linearization leading to simplifying the circuitry requirements in a single supply environment. Due to low quiescent current of LM50 (typically around 95µA), self-heating is limited to a very low 0.2°C (in still air) and the device is designed for remote or battery-powered applications. Trimming and calibration of the LM50 at the wafer level provide long-term availability, low cost and consistent accuracy in two grades: LM50B (±2°C at 25°C, ±3°C over temperature range) and LM50C (±3°C at 25°C, ±4°C over temperature range).