Product Summary

The LM50BIM3X is a precision integrated-circuit temperature sensor that can sense a -40℃ to +125℃ temperature range using a single positive supply. The LM50BIM3X output voltage is linearly proportional to Celsius (Centigrade) 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 LM50BIM3X ranges from +100 mV to +1.75V for a -40℃ to +125℃temperature range. The LM50BIM3X does 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 LM50BIM3X at the wafer level assure low cost and high accuracy. The LM50BIM3X linear output, +500 mV offset, and factory calibration simplify circuitry required in a single supply environment where reading negative temperatures is required. Because the LM50BIM3X quiescent current is less than 130μA, self-heating is limited to a very low 0.2℃ in still air.

Parametrics

LM50BIM3X absolute maximum ratings: (1)Supply Voltage: +12V to -0.2V; (2)Output Voltage: (+VS + 0.6V) to -1.0V; (3)Output Current: 10 mA; (4)Storage Temperature: -65℃ to +150℃; (5)Lead Temperature of Vapor Phase (60 seconds) 215℃; (6)Lead Temperature of Infrared (15 seconds) 220℃; (7)TJMAX, Maximum of Junction Temperature 150℃; (8)ESD Susceptibility of Human Body Model: 2000V; (9)ESD Susceptibility of Machine Model: 250V.

Features

LM50BIM3X features: (1)Calibrated directly in degree Celsius (Centigrade); (2)Linear + 10.0 mV/℃ scale factor; (3)±2℃ accuracy guaranteed at +25℃; (4)Specified for full -40℃ to +125℃ range; (5)Suitable for remote applications; (6)Low cost due to wafer-level trimming; (7)Operates from 4.5V to 10V; (8)Less than 130 μA current drain; (9)Low self-heating, less than 0.2℃ in still air; (10)Nonlinearity less than 0.8℃ over temp.

Diagrams

LM50BIM3X block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM50BIM3X
LM50BIM3X

National Semiconductor (TI)

Board Mount Temperature Sensors

Data Sheet

0-3000: $0.41
3000-6000: $0.39
6000-12000: $0.38
LM50BIM3X/NOPB
LM50BIM3X/NOPB

National Semiconductor (TI)

Board Mount Temperature Sensors

Data Sheet

0-1: $0.93
1-25: $0.75
25-100: $0.68
100-250: $0.60