LM35

+V

S

R1

V

OUT

LM35

(4 V to 20 V)

OUTPUT

0 mV + 10.0 mV/°C

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LM35

SNIS159F – AUGUST 1999 – REVISED JANUARY 2016

LM35 Precision Centigrade Temperature Sensors

1 Features

3 Description

The LM35 series are precision integrated-circuit

1

•

Calibrated Directly in Celsius (Centigrade)

temperature devices with an output voltage linearly-

•

Linear + 10-mV/°C Scale Factor

proportional to the Centigrade temperature. The

•

0.5°C Ensured Accuracy (at 25°C)

LM35

device

has

an

advantage

over

linear

temperature sensors calibrated in Kelvin, as the user

•

Rated for Full

−55°C to 150°C Range

is not required to subtract a large constant voltage

•

Suitable for Remote Applications

from the output to obtain convenient Centigrade

•

Low-Cost Due to Wafer-Level Trimming

scaling. The LM35 device does not require any

external calibration or trimming to provide typical

•

Operates from 4 V to 30 V

accuracies of ±¼°C at room temperature and ±¾°C

•

Less than 60-

μA Current Drain

over a full

−55°C to 150°C temperature range. Lower

•

Low Self-Heating, 0.08°C in Still Air

cost is assured by trimming and calibration at the

•

Non-Linearity Only ±¼°C Typical

wafer level. The low-output impedance, linear output,

and precise inherent calibration of the LM35 device

•

Low-Impedance Output, 0.1

Ω for 1-mA Load

makes interfacing to readout or control circuitry

especially easy. The device is used with single power

2 Applications

supplies, or with plus and minus supplies. As the

•

Power Supplies

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

•

Battery Management

LM35 device is rated to operate over a

−55°C to

•

HVAC

150°C temperature range, while the LM35C device is

•

Appliances

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.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TO-CAN (3)

4.699 mm × 4.699 mm

TO-92 (3)

4.30 mm × 4.30 mm

LM35

SOIC (8)

4.90 mm × 3.91 mm

TO-220 (3)

14.986 mm × 10.16 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Basic Centigrade Temperature Sensor

Full-Range Centigrade Temperature Sensor

(2°C to 150°C)

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.