RoHS Compliance Information	Size in Kbytes	Date
LM135/LM235/LM335, LM135A/LM235A/LM335A Precision Temperature Sensors	857 Kbytes	17-Dec-08	Download
LM135 Mil-Aero Datasheet MNLM135-X	14 Kbytes		Download

Part Number

Package

Factory Lead Time

Models

Samples & Electronic Orders

Budgetary Pricing

Std Pack Size

Package Marking Format

Type

Pins

Spec.

MSL Rating

Peak Reflow

RoHS Report

CAD Symbols

Weeks

Qty

Qty

$US each

LM135H

TO-46

3

NOPB STD

1 1

NA NA

RoHS

N/A

Full production

N/A

250+

$5.90

box of 1000

NSXYTTE# LM135H

6 weeks

1000

Obsolete Versions

General Description

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 1Ω 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.

Application Notes

Title	Size in Kbytes	Date
AN-285: Application Note 285 An Acoustic Transformer Powered Super‐High Isolation Amplifier	172 Kbytes	4-Oct-04	Download
AN-293: Application Note 293 Control Applications of CMOS DACs	385 Kbytes	4-Oct-04	Download
AN-298: Application Note 298 Isolation Techniques for Signal Conditioning	379 Kbytes	2-Oct-02	Download
AN-225: Application Note 225 IC Temperature Sensor Provides Thermocouple Cold-Junction Compensation	89 Kbytes	2-Oct-02	Download
AN-262: Application Note 262 Applying Dual and Quad FET Op Amps	416 Kbytes	2-Oct-02	Download

More Application Notes

Title	Size in Kbytes	Date
AN-292: Application Note 292 Applications of the LM3524 Pulse-Width-Modulator	239 Kbytes	3-Oct-02	Download
AN-74: Application Note 74 LM139/LM239/LM339 A Quad of Independently Functioning Comparators	702 Kbytes	1-Oct-02	Download
AN-460: Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors	306 Kbytes	20-Sep-02	Download
AN-460 (Japanese): Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors	322 Kbytes
AN-D: Application Note D Versatile Monolithic V/Fs can Compute as Well as Convert with High Accuracy	248 Kbytes	3-Oct-02	Download
AN-C: Application Note C V/F Converter ICs Handle Frequency-to-Voltage Needs	187 Kbytes	3-Oct-02	Download
AN-211: Application Note 211 New Op Amp Ideas	620 Kbytes	2-Oct-02	Download