±0.5°C 4V-30V, Temperature sensor with analog output

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Product details

Parameters

Local sensor accuracy (Max) (+/- C) 0.5 Operating temperature range (C) -40 to 110, -55 to 150, 0 to 100, 0 to 70 Supply voltage (Min) (V) 4 Supply voltage (Max) (V) 30 Supply current (Max) (uA) 114 Interface type Analog output Sensor gain (mV/Deg C) 10 Rating Catalog Features UL recognized open-in-new Find other Analog temperature sensors

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 TO-92 (LP) 3 19 mm² 5.2 x 3.68 TO-CAN (NDV) 3 35 mm² 6.41 x 5.44 open-in-new Find other Analog temperature sensors

Features

  • Calibrated Directly in Celsius (Centigrade)
  • Linear + 10-mV/°C Scale Factor
  • 0.5°C Ensured Accuracy (at 25°C)
  • Rated for Full −55°C to 150°C Range
  • Suitable for Remote Applications
  • Low-Cost Due to Wafer-Level Trimming
  • Operates From 4 V to 30 V
  • Less Than 60-µA Current Drain
  • Low Self-Heating, 0.08°C in Still Air
  • Non-Linearity Only ±¼°C Typical
  • Low-Impedance Output, 0.1 Ω for 1-mA Load

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Description

The LM35 series are precision integrated-circuit temperature devices with an output voltage linearly-proportional to the Centigrade temperature. The LM35 device has an advantage over linear temperature sensors calibrated in Kelvin, as the user is not required to subtract a large constant voltage from the output to obtain convenient Centigrade scaling. The LM35 device does not require any external calibration or trimming to provide typical accuracies of ±¼°C at room temperature and ±¾°C over a full −55°C to 150°C temperature range. Lower cost is assured by trimming and calibration at the wafer level. The low-output impedance, linear output, and precise inherent calibration of the LM35 device makes interfacing to readout or control circuitry especially easy. The device is used with single power supplies, or with plus and minus supplies. As the LM35 device draws only 60 µA from the supply, it has very low self-heating of less than 0.1°C in still air. The LM35 device is rated to operate over a −55°C to 150°C temperature range, while the LM35C device is rated for a −40°C to 110°C range (−10° with improved accuracy). The LM35-series devices are available packaged in hermetic TO transistor packages, while the LM35C, LM35CA, and LM35D devices are available in the plastic TO-92 transistor package. The LM35D device is available in an 8-lead surface-mount small-outline package and a plastic TO-220 package.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 11
Type Title Date
* Datasheet LM35 Precision Centigrade Temperature Sensors datasheet (Rev. H) Dec. 21, 2017
Technical articles How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
Technical articles How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical articles Driving industrial innovation with small-size sensors Sep. 12, 2019
Application notes Low-input bias-current front end SAR ADC circuit (Rev. A) Mar. 11, 2019
Application notes Temperature sensors: PCB guidelines for surface mount devices (Rev. A) Jan. 18, 2019
More literature UL Certificate of Compliance Vol1-Sec14 E232195 Aug. 06, 2018
Technical articles How sensor technology is evolving to meet cold chain needs Jun. 18, 2018
Application notes Thermocouple, Cold-Junction Compensation—Analog Approach Aug. 27, 2014
Application notes AN-1852 Designing With pH Electrodes (Rev. A) May 01, 2013
Application notes AN-460 LM34/LM35 Precision Monolithic Temperature Sensors (Rev. C) May 01, 2013

Design & development

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Software development

CODE EXAMPLES & DEMOS Download
SLOC348.ZIP (50 KB)

Reference designs

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CAD/CAE symbols

Package Pins Download
(NEB) 3 View options
SOIC (D) 8 View options
TO (NDV) 3 View options
TO-92 (LP) 3 View options

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