SGS Thomson Microelectronics LM335D, LM335Z, LM335, LM235, LM135 Datasheet

LM135

LM23 5- LM335 ,A

PRECISION TEMPERATURESENSORS

.DIRECTLYCALIBRATEDIN

o

.1

C INITIALACCURACY

o

K

.OPERATESFROM450µATO5mA

.LESSTHAN 1Ω DYNAMICIMPEDANCE

DESC RIP TI ON

The LM135,LM235,LM335are precision tempera­ture sensors which can be easilycalibrated. They
operate as a 2-terminalZener and the breakdown
voltageis directly proportionalto the absolute tem­peratureat 10mV/
pedance of less than 1Ω and operates within a
rangeof currentfrom 450µA to 5mAwithoutaltera-
tion of its characteristics. Calibrated at +25
LM135,LM235, LM335 have a typicalerrorof less

o

than 1

C over a 100oC temperaturerange. Unlike
other sensors,the LM135, LM235, LM335 have a
linearoutput.

o

K. Thecircuithas a dynamicim-

o

C, the

(PlasticPackage

(PlasticMicropackage)

ORDER CODES

Part num-

ber

LM135 –55
LM235 –40
LM335,A –40

Z

TO92

D

SO8

Temperature

Range

o

C, +150oC ••

o

C, +125oC ••

o

C, +100oC ••

Package

ZD

PI N CO NNECT IONS

October1997

TO92

(Bottomview)

+

V

ADJ

SO8

(Topview)

+

NC

V

-

V

135-01.EPS

8765

12

NC

NC

ADJ

NC

34

-

V

NC

135-02.EPS

LM135-LM235-LM335, A

SCHEMATI C DIAG RAM

V

1

3pF

10kΩ

12pF

50kΩ

49kΩ

2kΩ

1.1kΩ

49kΩ

15.6kΩ

600Ω

30kΩ

13.8kΩ

AD J

2

V

3

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter LM135 LM235 LM335,A Unit

Current

I

R

I

F

T

oper

T

stg

Note : 1. Tj≤ 150oC

Reverse
Forward

15
10

15
10

15
10

Operating Free-air Temperature Range - (note 1)

Continuous
Intermittent

–55 to +150

+150 to +200

–40 to +125

+125 to +150

–40 to +100

+100 to +125

Storage Temperature Range –65 to +150 –65 to +150 –65 to +150

mA

o

o

C

C

2/11

LM135-LM235-LM335, A

TEMPERATURE ACCURACY

LM135 - LM235

Parameter

LM335A

Min. Typ. Max. Min. Typ. Max.

Operating Output Voltage

= +25oC, IR= 1mA 2.95 2.98 3.01 2.92 2.98 3.04

T

case

Uncalibrated Temperature Error (I

= +25oC

T

case

≤ T

T

min.

case

≤ T

max.

= 1mA)

R

1
2

3
5

Temperature Error with 25oC Calibration

≤ T

T

min.

case

≤ T

= 1mA LM135 - LM235

max.,IR

LM335
LM335A

0.5

0.5

1.5
1

Calibrated Error at Extended Temperature

T

case=Tmax.

Non-linearity (I

(intermittent) 2 2

= 1mA) LM135 - LM235

R

LM335
LM335A

0.3

0.3

1

1.5

ELECTRICAL CHARACTERISTICS - (note 1)

Parameter

Operating output voltage change with current

450µA ≤ I

Dynamic Impedance (I

≤ 5mA at constant temperature 2.5 10 3 14

R

= 1mA) 0.5 0.6 Ω

R

Output Voltage Temperature Drift +10 +10 mV/
Time Constant Still Air

Air 0.5m/s
Stirred Oil

Time Stability (T

Note : 1. Accuracy measurements are made in a well-stirred oil bath. For other conditions, self heating must be considered.

= +125oC) 0.2 0.2

case

LM135 - LM235 LM335,A

Min. Typ. Max. Min. Typ. Max.

80
10

1

LM335

2
4

6
9

12

0.3 1.5

80
10

1

Unit

o

o

o

o

Unit

mV

o

C/kh

V

C

C

C

C

o

C

s

3/11

LM135-LM235-LM335, A

4/11