Texas Instruments LMV881 Bruksanvisning
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SENSOR
+
-
+
-
ADC
PRESSURE
EMI HARDENED
EMI HARDENED
+
-
V
+
R1
R2
INTERFERING
RF SOURCES
NO RF RELATED
DISTURBANCES
LMV881
www.ti.com
SNOSC62B–JANUARY2012–REVISEDMAY2013
LMV88123MHzLowPowerCMOSEMIHardenedOperationalAmplifierwith1.8VLogic
Shutdown
CheckforSamples:LMV881
1
FEATURES
APPLICATIONS
2
•UnlessOtherwiseNoted,TypicalValuesatT
A
•WeightScaleSystems
=25°C,V
+
=3.3V
•Filters/Buffers
•SupplyVoltage2.7Vto5.5V
•MedicalDiagnosisEquipment
•SupplyCurrent1.65mADESCRIPTION
TheLMV881isalowpowerCMOSinputoperational
•ShutdownCurrent200pA
amplifierthatprovideslowinputbiascurrents,arail
•InputOffsetVoltage1mVMax
torailoutputwithhighoutputdrivecapabilityanda
•InputBiasCurrent0.1pA
widetemperaturerangeof−40°Cto+125°C.
Additionally,theLMV881isEMIhardenedto
•GBW23MHz
minimizesensitivitytoexternalinterference.
•EMIRRat1.8GHz105dB
TheLMV881hasamaximuminputoffsetvoltageof1
•InputNoiseVoltageat1kHz9nV/√Hz
mVwithaninputcommon-modevoltagerangethat
•SlewRate12V/µs
includesground.Overanoperatingsupplyrange
•OutputVoltageSwingRail-to-Rail
from2.7Vto5.5V,theLMV881providesatypical
PSRRof110dBandaCMRRof110dB.Thismakes
•OutputCurrentDrive70mA
theLMV881idealforEMIsensitiveapplicationsas
•OperatingAmbientTemperatureRange−40°C
wellasexceptionalperformanceasarobustgeneral
to125°C
purposepart.
•SpaceSavingMicro-UQFNPackage1.5x1.0x
TheunitygainstableLMV881features23MHzof
0.5mm
bandwidthwhileconsumingonly1.65mAofcurrent.
Thisdevicealsomaintainsstabilityforcapacitive
loadsaslargeas200pF.
TypicalApplication
Figure1.EMIHardenedSensorApplication
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2012–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Produktspecifikationer
| Varumärke: | Texas Instruments |
| Kategori: | ej kategoriserat |
| Modell: | LMV881 |
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