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LM135 Product Folder

Precision Temperature Sensor

Generic P/N 135

Parametric Table

Temperature Min (deg C)	-55
Temperature Max (deg C)	150
Accuracy (+/-) (deg C)	3
Supply Min (Volt)	5
Supply Max (Volt)	-

Quiescent Current (mA)	.40
Sensor Gain	10 mV/Deg K
Single Supply	Yes
Output Impedance (Ohm)	.50

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LM135 LM235 LM335, LM135A LM235A LM335A Precision Temperature Sensors	291 Kbytes	30-Nov-00	View Online	Download	Receive via Email
LM135 Mil-Aero Datasheet MNLM135-X	14 Kbytes		View Online	Download	Receive via Email

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Package Availability, Models, Samples & Pricing

Part Number

Package

Status

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking

Type

Pins

MSL/Lead-Free Availability

Lead
Time

Qty

SPICE

IBIS

Qty

$US each

LM135H

TO-46

Status

Full production

N/A

250+

$5.65

bag
of
100

NSXYTT LM135H

6 weeks

3000

LM135H-MIL

TO-46

Status

Full production

N/A

50+

$11.00

tray
of
20

NSZSSXXYYA LM135H-MIL

8-10 weeks

500

LM135H-MLS

TO-46

Status

Full production

N/A

50+

$205.00

tray
of
20

NSZSSXXYYA LM135H-MLS

N/A

LM135 MD8

Unpackaged Die

Full production

N/A

tray
of
N/A

N/A

LM135 MW8

Wafer

Full production

N/A

wafer jar
of
N/A

N/A

Obsolete Parts

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM135G MW8	MIL.PKG.PROD	NATIONAL SEMICONDUCTOR	12/07/99

The LM135 series are precision, easily-calibrated, integrated circuit temperature sensors. Operating as a 2-terminal zener, the LM135 has a breakdown voltage directly proportional to absolute temperature at +10 mV/°K. With less than 1Ohm dynamic impedance the device operates over a current range of 400 µA to 5 mA with virtually no change in performance. When calibrated at 25°C the LM135 has typically less than 1°C error over a 100°C temperature range. Unlike other sensors the LM135 has a linear output.

Applications for the LM135 include almost any type of temperature sensing over a -55°C to +150°C temperature range. The low impedance and linear output make interfacing to readout or control circuitry especially easy.

The LM135 operates over a -55°C to +150°C temperature range while the LM235 operates over a -40°C to +125°C temperature range. The LM335 operates from -40°C to +100°C. The LM135/LM235/LM335 are available packaged in hermetic TO-46 transistor packages while the LM335 is also available in plastic TO-92 packages.

Features

Directly calibrated in °Kelvin
1°C initial accuracy available
Operates from 400 µA to 5 mA
Less than 1Ohm dynamic impedance
Easily calibrated
Wide operating temperature range
200°C overrange
Low cost

Application Notes

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
AN-298: Application Note 298 Isolation Techniques for Signal Conditioning	455 Kbytes	2-Oct-02	View Online	Download	Receive via Email
AN-225: Application Note 225 IC Temperature Sensor Provides Thermocouple Cold-Junction Compensation	122 Kbytes	2-Oct-02	View Online	Download	Receive via Email
AN-262: Application Note 262 Applying Dual and Quad FET Op Amps	601 Kbytes	2-Oct-02	View Online	Download	Receive via Email
AN-285: An Acoustic Transformer Powered Super-High Isolation Amplifier	113 Kbytes	9-Apr-96	View Online	Download	Receive via Email
AN-293: Control Applications of CMOS DACs	178 Kbytes	4-Nov-95	View Online	Download	Receive via Email
AN-460: Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors	306 Kbytes	20-Sep-02	View Online	Download	Receive via Email
Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors (JAPANESE)	322 Kbytes
AN-292: Application Note 292 Applications of the LM3524 Pulse-Width-Modulator	298 Kbytes	3-Oct-02	View Online	Download	Receive via Email