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V

IN

R

1

R

2

V

REF

V

CC

V

OUT

+

-

C1 =

0.1µF

C2 =

10µF

LMV7291

www.ti.com

SNOSA86E–FEBRUARY2004–REVISEDMARCH2013

LMV7291Single1.8VLowPowerComparatorwithRail-to-RailInput

CheckforSamples:LMV7291

1

FEATURES

DESCRIPTION

TheLMV7291isarail-to-railinputlowpower

2

•(V

S

=1.8V,T

A

=25°C,Typical

comparator,characterizedatsupplyvoltage1.8V,

ValuesunlessSpecified)

2.7Vand5.0V.Itconsumesonly9uAsupplycurrent

•SingleSupply

perchannelwhileachievinga800nspropagation

•UltraLowSupplyCurrent9µAperChannel

delay.

•LowInputBiasCurrent10nA

TheLMV7291isavailableinSC70package.Withthis

tinypackage,thePCboardareacanbesignificantly

•LowInputOffsetCurrent200pA

reduced.Itisidealforlowvoltage,lowpowerand

•LowensuredV

OS

4mV

spacecriticaldesigns.

•PropagationDelay880ns(20mVOverdrive)

TheLMV7291featuresapush-pulloutputstage

•InputCommonModeVoltageRange0.1V

whichallowsoperationwithminimumpower

beyondRails

consumptionwhendrivingaload.

TheLMV7291isbuiltwithTexasInstruments'

APPLICATIONS

advancesubmicronsilicon-gateBiCMOSprocess.It

•MobileCommunications

hasbipolarinputsforimprovednoiseperformance

•LaptopsandPDA's

andCMOSoutputsforrail-to-railoutputswing.

•BatteryPoweredElectronics

•GeneralPurposeLowVoltageApplications

TypicalCircuit

Figure1.ThresholdDetector

Thesedeviceshavelimitedbuilt-inESDprotection.Theleadsshouldbeshortedtogetherorthedeviceplacedinconductivefoam

duringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates.

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2004–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Produktspecifikationer