Texas Instruments ADS7883 Handleiding
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FEATURESAPPLICATIONS
DESCRIPTION
ADS7883
www.ti.com
.......................................................................................................................................................................................................SLAS594–JULY2008
12-BIT,3-MSPS,MICROPOWER,MINIATURE
SARANALOG-TO-DIGITALCONVERTER
•BaseBandConvertersinRadio
•3-MHzSampleRateSerialDevice
Communication
•12-BitResolution
•MotorCurrent/BusVoltageSensorsinDigital
•ZeroLatency
Drives
•48-MHzSerialInterface
•OpticalNetworking(DWDM,MEMSBased
•SupplyRange:2.7Vto5.5V
Switching)
•LowPowerDissipation:
•OpticalSensors
•BatteryPoweredSystems
–6.45mWat3-VV
DD
,2MSPS
•MedicalInstrumentations
–13.5mwat5-VV
DD
,3MSPS
•High-SpeedDataAcquisitionSystems
•±0.6LSBINL,±0.5LSBDNL
•High-SpeedClosed-LoopSystems
•72dBSINAD,–84dBTHD
•UnipolarInputRange:0VtoV
DD
•Power-DownCurrent:1µA
•WideInputBandwidth:30MHzat3dB
•6-PinSOT23Package
TheADS7883isa12-bit,3-MSPSanalog-to-digitalconverter(ADC).ThedeviceincludesacapacitorbasedSAR
A/Dconverterwithinherentsampleandhold.TheserialinterfaceinthedeviceiscontrolledbytheCSandSCLK
signalsforgluelessconnectionswithmicroprocessorsandDSPs.Theinputsignalissampledwiththefalling
edgeofCS,andSCLKisusedforconversionandserialdataoutput.
Thedeviceoperatesfromawidesupplyrangefrom2.7Vto5.5V.Thelowpowerconsumptionofthedevice
makesitsuitableforbattery-poweredapplications.Thedevicealsoincludesapowersavingpower-downfeature
forwhenthedeviceisoperatedatlowerconversionspeeds.
ThehighlevelofthedigitalinputtothedeviceisnotlimitedtodeviceV
DD
.Thereforethedigitalinputcangoas
highas5.5Vwhenthedevicesupplyis2.7V.Thisfeatureisusefulwhendigitalsignalsarereceivedfrom
anothercircuitwithdifferentsupplylevels.Thisalsoreducesrestrictionsonpower-upsequencing.
TheADS7883isavailableina6-pinSOT23packageandisspecifiedforoperationfrom–40°Cto125°C.
MicroPowerMiniatureSARConverterFamily
BIT<300KSPS300KSPS–1.25MSPS3MSPS
3MSPSfor4.5V
DD
to5.5V
DD
12-BitADS7866(1.2V
DD
to3.6V
DD
)ADS7886(2.35V
DD
to5.25V
DD
)ADS7883
2MSPSfor2.7V
DD
to4.5V
DD
10-BitADS7867(1.2V
DD
to3.6V
DD
)ADS7887(2.35V
DD
to5.25V
DD
)ADS7884(2.7V
DD
to5.5V
DD
)
8-BitADS7868(1.2V
DD
to3.6V
DD
)ADS7888(2.35V
DD
to5.25V
DD
)ADS7885(2.7V
DD
to5.5V
DD
)
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Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas
Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2008,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS7883 |
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