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LM50

Texas Instruments
Part Number LM50
Manufacturer Texas Instruments
Description Temperature Sensor
Published May 3, 2020
Detailed Description Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design LM50, LM50-Q1 S...
Datasheet PDF File LM50 PDF File

LM50
LM50

Overview
Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design LM50, LM50-Q1 SNIS118G – JULY 1999 – REVISED JANUARY 2017 LM50 and LM50-Q1 SOT-23 Single-Supply Centigrade Temperature Sensor 1 Features •1 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-µA Current Drain • Low Self-Heating: Less Than 0.
2°C in Still A • Nonlinearity Less Than 0.
8°C Over Temp • UL Recognized Component 2 Applications • Automotive • Computers • Disk Drives • Battery Management • FAX Machines • Printers • Portable Medical Instruments • HVAC • Power Supply Modules SPACER Simplified Schematic +VS (4.
5 V to 10 V) LM50 LM50-Q1 Output Copyright © 2016, Texas Instruments Incorporated 3 Description 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 nec...


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