Texas Instruments ADS1672 Handleiding
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ADS1672
DS
Modulator
DVDD
DGND
AINP
AINN
ADS1672
AGND
AVDD
VREFP
VREFN
Dual
Path
Filter
Low-LatencyFilter
Wide-BandwidthFilter
CMOSand
LVDS
Compatible
Serial
Interface
DataReady
DataOutput
SerialShiftClock
ChipSelect
InterfaceConfiguration
MasterClock
FilterPath
DataRate
StartConversion
PowerDown
Out-of-Range
Control
ADS1672
www.ti.com
SBAS402D–JUNE2008–REVISEDJULY2010
625kSPS,24-BitAnalog-to-DigitalConverter
CheckforSamples:ADS1672
1
FEATURES
DESCRIPTION
2
•ACPerformance:
TheADS1672isahigh-speed,high-precision
107dBofDynamicRangeat625kSPS
analog-to-digitalconverter(ADC).Usinganadvanced
115.5dBofDynamicRangeat78kSPS
delta-sigma(ΔΣ)architecture,itoperatesatspeeds
upto625kSPSwithoutstandingacperformanceand
–113dBTHD
dcaccuracy.
•DCAccuracy:
3ppmINL
TheADS1672ADCiscomprisedofalow-drift,
2mV/°COffsetDrift
chopper-stabilizedmodulatorwithout-of-range
detectionandadual-pathprogrammabledigitalfilter.
2ppm/°CGainDrift
Thedualfilterpathallowstheusertoselectbetween
•ProgrammableDigitalFilterwith
twopost-processingfilters:low-latencyor
User-SelectablePath:
wide-bandwidth.Thelow-latencyfiltersettlesquickly
–Low-Latency:Completelysettlesin5.5ms
inonecycle,forapplicationswithlargeinstantaneous
changes,suchasamultiplexer.Thewide-bandwidth
–Wide-Bandwidth:305kHzBWwithflat
pathprovidesanoptimizedfrequencyresponseforac
passband
measurementswithapassbandrippleoflessthan
•FlexibleRead-OnlySerialInterface:
0.001dB,stopbandattenuationof86dB,anda
–StandardCMOS
bandwidthof305kHz.
–SerializedLVDS
TheADS1672iscontrolledthroughI/Opins—there
•EasyConversionControlwithSTARTPin
arenoregisterstoprogram.AdedicatedSTARTpin
allowsfordirectcontrolofconversions:togglethe
•Out-of-RangeDetection
STARTpintobeginaconversion,andthenretrieve
•Supply:Analog+5V,Digital+3V
theoutputdata.Theflexibleserialinterfacesupports
•Power:350mW
datareadbackwitheitherstandardCMOSandLVDS
logiclevels,allowingtheADS1672todirectlyconnect
APPLICATIONS
toawiderangeofmicrocontrollers,digitalsignal
processors(DSPs),orfield-programmablegridarrays
•AutomatedTestEquipment
(FPGAs).
•VibrationAnalysis
TheADS1672operatesfromananalogsupplyof5V
•Sonar
anddigitalsupplyof3V,anddissipates350mWof
•TestandMeasurement
power.Whennotinuse,thePDWNpincanbeused
topowerdownalldevicecircuitry.Thedeviceisfully
specifiedovertheindustrialtemperaturerangeandis
offeredinaTQFP-64package.
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas
Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2008–2010,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS1672 |
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