Texas Instruments LMV344-N Handleiding

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V

IN

V

OUT

V

+

+

-

+

-

V

+

C = 200pF

SAMPLE

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

LMV341-N

,

LMV342-N

,

LMV344-N

SNOS990H–APRIL2002–REVISEDJUNE2016

LMV34x-NSingleRail-to-RailOutputCMOSOperationAmplifierWithShutdown

1

1Features

1

•Typical2.7VSupplyValues(UnlessOtherwise

Noted)

•Ensured2.7Vand5VSpecifications

•InputReferredVoltageNoiseat10kHz:

29nV/√Hz

•SupplyCurrent(PerAmplifier):100µA

•GainBandwidthProduct:1MHz

•SlewRate:1V/µs

•ShutdownCurrent(LMV341-N):45pA

•TurnonTimeFromShutdown(LMV341-N):5µs

•InputBiasCurrent:20fA

2Applications

•CordlessorCellularPhones

•Laptops

•PDAs

•PCMCIAorAudio

•PortableorBattery-PoweredElectronicEquipment

•SupplyCurrentMonitoring

•BatteryMonitoring

•Buffers

•Filters

•Drivers

SampleandHoldCircuit

3Description

TheLMV34x-Ndevicesaresingle,dual,andquad

low-voltage,low-poweroperationalamplifiers.They

aredesignedspecificallyforlow-voltageportable

applications.Otherimportantproductcharacteristics

arelowinputbiascurrent,rail-to-railoutput,andwide

temperaturerange.

ThepatentedclassABturnaroundstagesignificantly

reducesthenoiseathigherfrequencies,power

consumption,andoffsetvoltage.ThePMOSinput

stageprovidestheuserwithultra-lowinputbias

currentof20fA(typical)andhighinputimpedance.

Theindustrial-plustemperaturerangeof−40°Cto

125°CallowstheLMV34x-Ntoaccommodatea

broadrangeofextendedenvironmentapplications.

LMV341-NexpandsTexasInstrument'sSiliconDust

amplifierportfolioofferingenhancementsinsize,

speed,andpowersavings.TheLMV34x-Ndevices

arespecifiedtooperateoverthevoltagerangeof

2.7Vto5.5Vandallhaverail-to-railoutput.

TheLMV341-Noffersashutdownpinthatcanbe

usedtodisablethedevice.Onceinshutdownmode,

thesupplycurrentisreducedto45pA(typical).The

LMV34x-Ndeviceshave29-nVvoltagenoiseat10

KHz,1MHzGBW,1-V/µsslewrate,0.25mVos,and

0.1-µAshutdowncurrent(LMV341-N).

TheLMV341-Nisofferedinthetiny6-pinSC70

package,theLMV342-Ninspace-saving8-pin

VSSOPandSOICpackages,andtheLMV344-Nin

14-pinTSSOPandSOICpackages.Thesesmall

packageamplifiersofferanidealsolutionfor

applicationsrequiringminimumPCBfootprint.

ApplicationswithareaconstrainedPCBrequirements

includeportableelectronicssuchascellularhandsets

andPDAs.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

LMV341-NSC70(6)2.00mm×1.25mm

LMV342-N

VSSOP(8)3.00mm×3.00mm

SOIC(8)4.90mm×3.91mm

LMV344-N

TSSOP(14)5.00mm×4.40mm

SOIC(14)8.64mm×3.91mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

Product specificaties