Texas Instruments ADS1231 Handleiding
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24-Bit
ADCDS
VREFPVREFN
CAPDVDD
GND
AINP
AINN
SCLK
SPEED
DRDY/DOUT
PDWN
AVDD
Internal
Oscillator
G=128
SW
CAP
CLKIN
EMI
Filter
ADS1231
www.ti.com
SBAS414D–JULY2009–REVISEDOCTOBER2013
24-BitAnalog-to-DigitalConverter
forBridgeSensors
CheckforSamples:ADS1231
1
FEATURES
DESCRIPTION
TheADS1231isaprecision,24-bitanalog-to-digital
2
•CompleteFront-EndforBridgeSensors
converter(ADC).Withanonboardlow-noise
•InternalAmplifier,Gainof128
amplifier,onboardoscillator,precisionthird-order24-
•InternalOscillator
bitdelta-sigma(ΔΣ)modulator,andbridgepower
switch,theADS1231providesacompletefront-end
•Low-SidePowerSwitchforBridgeSensor
solutionforbridgesensorapplicationsincluding
•LowNoise:35nVrms
weighscales,straingauges,andloadcells.
•SelectableDataRates:10SPSor80SPS
Thelow-noiseamplifierhasagainof128,supporting
•Simultaneous50Hzand60HzRejectionat
afull-scaledifferentialinputof±19.5mV.TheΔΣADC
10SPS
has24-bitresolutionandiscomprisedofathird-order
•InputEMIFilter
modulatorandfourth-orderdigitalfilter.Twodata
ratesaresupported:10SPS(withboth50Hzand
•ExternalVoltageReferenceupto5Vfor
60Hzrejection)and80SPS.TheADS1231canbe
RatiometricMeasurements
putinalow-powerstandbymodeorshutoff
•Simple,Pin-DrivenControl
completelyinpower-downmode.
•Two-WireSerialDigitalInterface
TheADS1231iscontrolledbydedicatedpins;there
•SupplyRange:3Vto5.3V
arenodigitalregisterstoprogram.Dataareoutput
overaneasily-isolatedserialinterfacethatconnects
•Package:SOIC-16
directlytotheMSP430andothermicrocontrollers.
•TemperatureRange:–40°Cto+85°C
TheADS1231isavailableinanSO-16packageand
APPLICATIONSisspecifiedfrom–40°Cto+85°C.
•WeighScales
•StrainGauges
•LoadCells
•IndustrialProcessControl
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2009–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS1231 |
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