Texas Instruments ADS1601 Handleiding
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FSO
ReferenceandBiasCircuits
Serial
Interface
LinearPhase
FIRDigitalFilter
DS
Modulator
VREFPVREFNRBIASVMIDVCAPAVDDDVDDIOVDD
DGND
AGND
AINP
AINN
FSO
SCLK
DOUT
SCLK
SYNC
CLK
DOUT
OTR
PD
REFEN
ADS1601
ADS1601
www.ti.com
SBAS322D–DECEMBER2004–REVISEDOCTOBER2011
16-Bit,1.25MSPSAnalog-to-DigitalConverter
CheckforSamples:ADS1601
1
FEATURES
DESCRIPTION
TheADS1601isahigh-speed,high-precision,
2
•HighSpeed:
delta-sigmaanalog-to-digitalconverter(ADC)
–DataRate:1.25MSPS
manufacturedonanadvancedCMOSprocess.The
–Bandwidth:615kHz
ADS1601oversamplingtopologyreducesclockjitter
sensitivityduringthesamplingofhigh-frequency,
•OutstandingPerformance:
largeamplitudesignalsbyafactoroffouroverthat
–SNR:92dBatf
IN
=100kHz,–1dBFS
achievedbyNyquist-rateADCs.Consequently,
–THD:–103dBatf
IN
=100kHz,–6dBFS
signal-to-noiseratio(SNR)isparticularlyimproved.
Totalharmonicdistortion(THD)is–103dB,andthe
–SFDR:105dBatf
IN
=100kHz,–6dBFS
spurious-freedynamicrange(SFDR)is105dB
•Ease-of-Use:
Optimizedforpowerandperformance,theADS1601
–High-Speed3-WireSerialInterface
dissipatesonly330mWwhileprovidingafull-scale
–DirectlyConnectstoTMS320DSPs
differentialinputrangeof±0.94V
REF
.Havingsucha
–On-ChipDigitalFilterSimplifiesAnti-Alias
wideinputrangemakesout-of-rangesignals
Requirements
uncommon.TheOTRpinindicatesifananaloginput
out-of-rangeconditiondoesoccur.Thedifferential
–SimplePin-DrivenControl—NoOn-Chip
inputsignalismeasuredagainstthedifferential
RegisterstoProgram
reference,whichcanbegeneratedinternallyonthe
–SelectableOn-ChipVoltageReference
ADS1601orsuppliedexternally.
–SimultaneousSamplingwithMultiple
TheADS1601usesaninherentlystableadvanced
ADS1601s
modulatorwithanon-chipdecimationfilter.Thefilter
•LowPower:
stopbandextendsto19.3MHz,whichgreatly
simplifiestheanti-aliasingcircuitry.Themodulator
–330mWat1.25MSPS
samplestheinputsignalupto20MSPS,depending
–145mWat625kSPS
onf
CLK
,whilethe16xdecimationfilterusesaseries
–Power-DownMode
offourhalf-bandFIRfilterstagestoprovide75dBof
stopbandattenuationand0.001dBofpassband
APPLICATIONS
ripple.
•Sonar
Outputdataisprovidedoverasimple3-wireserial
interfaceatratesupto1.25MSPS,witha–3dB
•VibrationAnalysis
bandwidthof615kHz.Theoutputdataorits
•DataAcquisition
complementaryformatdirectlyconnectstoDSPs
suchasTI’sTMS320family,FPGAs,orASICs.A
dedicatedsynchronizationpinenablessimultaneous
samplingwithmultipleADS1601sinmulti-channel
systems.Powerdissipationissetbyanexternal
resistorthatallowsareductionindissipationwhen
operatingatslowerspeeds.AlloftheADS1601
featuresarecontrolledbydedicatedI/Opins,which
simplifyoperationbyeliminatingtheneedforon-chip
registers.
Thehighperforming,easy-to-useADS1601is
especiallysuitablefordemandingmeasurement
applicationsinsonar,vibrationanalysis,anddata
acquisition.TheADS1601isofferedinasmall,7mm
×7mmTQFP-48packageandisspecified
from–40°Cto+85°C.
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas
Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2004–2011,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS1601 |
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