Texas Instruments ADS1230 Bedienungsanleitung
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DSADC
REFPREFNCAPDVDD
DGND
GAIN
AINP
AINN
SCLK
SPEED
DRDY/DOUT
PDWN
AVDD
CAP
Internal
Oscillator
CLKIN
Gain=64or128
PGA
AGND
ADS1230
www.ti.com
SBAS366B–OCTOBER2006–REVISEDSEPTEMBER2012
20-BitAnalog-to-DigitalConverter
ForBridgeSensors
CheckforSamples:ADS1230
1
FEATURES
DESCRIPTION
TheADS1230isaprecision20-bitanalog-to-digital
2
•CompleteFront-EndforBridgeSensor
converter(ADC).Withanonboardlow-noise
•OnboardPGAwithGainof64or128
programmablegainamplifier(PGA),onboard
•OnboardOscillator
oscillator,andprecision20-bitdelta-sigmaADC,the
ADS1230providesacompletefront-endsolutionfor
•RMSNoise:
bridgesensorapplicationsincludingweighscales,
40nVat10SPS(G=128)
straingauges,andpressuresensors.
88nVat80SPS(G=128)
Thelow-noisePGAhasagainof64or128,
•18-BitNoise-FreeResolution
supportingafull-scaledifferentialinputof±39mVor
•Selectable10SPSor80SPSDataRates
±19.5mV,respectively.Thedelta-sigmaADChas20-
•Simultaneous50Hzand60HzRejectionat
biteffectiveresolutionandiscomprisedofa3rd-
10SPS
ordermodulatorand4th-orderdigitalfilter.Twodata
ratesaresupported:10SPS(withboth50Hzand
•ExternalVoltageReferenceupto5Vfor
60Hzrejection)and80SPS.TheADS1230canbe
RatiometricMeasurements
clockedbytheinternaloscillatororanexternalclock
•Simple,Pin-DrivenControl
source.Offsetcalibrationisperformedon-demand,
•Two-WireSerialDigitalInterface
andtheADS1230canbeputinalow-powerstandby
modeorshutoffcompletelyinpower-downmode.
•Tiny16-pinTSSOPPackage
•SupplyRange:2.7Vto5.3V
AllofthefeaturesoftheADS1230arecontrolledby
dedicatedpins;therearenodigitalregistersto
•–40°Cto+85°CTemperatureRange
program.Dataareoutputoveraneasily-isolated
serialinterfacethatconnectsdirectlytotheMSP430
APPLICATIONS
andothermicrocontrollers.
•WeighScales
TheADS1230isavailableinaTSSOP-16package
•StrainGauges
andisspecifiedfrom–40°Cto+85°C.
•PressureSensors
•IndustrialProcessControl
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2006–2012,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Produktspezifikationen
| Marke: | Texas Instruments |
| Kategorie: | Nicht kategorisiert |
| Modell: | ADS1230 |
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