Texas Instruments LT1009 Bruksanvisning

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1

FEATURES

1

2

3

4

8

7

6

5

NC

NC

NC

ANODE

CATHODE

NC

CATHODE

ADJ

D OR PW PACKAGE

(TOP VIEW)

NC − No internal connection

ANODE

CATHODE

ADJ

LP PACKAGE

(TOP VIEW)

1

2

3

4

8

7

6

5

NC

NC

NC

ANODE

CATHODE

NC

CATHODE

ADJ

D OR PW PACKAGE

(TOP VIEW)

DESCRIPTION/ORDERINGINFORMATION

ANODECATHODE

ADJ

LT1009

www.ti.com

.................................................................................................................................................................SLVS013N–MAY1987–REVISEDMAY2009

2.5-VINTEGRATEDREFERENCECIRCUIT

•ExcellentTemperatureStability•WideOperatingCurrentRange

•InitialTolerance:0.2%Max•DirectlyInterchangeableWithLM136

•DynamicImpedance:0.6ΩMax•NeedsNoAdjustmentforMinimum

TemperatureCoefficient

TheLT1009referencecircuitisaprecision-trimmed2.5-Vshuntregulatorfeaturinglowdynamicimpedanceand

awideoperatingcurrentrange.Themaximuminitialtoleranceis±5mVintheLPpackageand±10mVintheD

andPWpackages.Thereferencetoleranceisachievedbyon-chiptrimming,whichminimizestheinitialvoltage

toleranceandthetemperaturecoefficient,α

VZ

.

AlthoughtheLT1009needsnoadjustments,athirdterminal(ADJ)allowsthereferencevoltagetobeadjusted

±5%toeliminatesystemerrors.Inmanyapplications,theLT1009canbeusedasaterminal-for-terminal

replacementfortheLM136-2.5,whicheliminatestheexternaltrimnetwork.

TheLT1009usesinclude5-Vsystemreferences,8-bitanalog-to-digitalconverter(ADC)anddigital-to-analog

converter(DAC)references,andpower-supplymonitors.Thedevicealsocanbeusedinapplicationssuchas

digitalvoltmetersandcurrent-loopmeasurementandcontrolsystems.

TheLT1009Cischaracterizedforoperationfrom0°Cto70°C.TheLT1009Iischaracterizedforoperationfrom

–40°Cto85°C.

SYMBOL

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas

Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©1987–2009,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Produktspecifikationer