Texas Instruments ADS8319 Handleiding

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CDAC

COMP

SAR

O/P

Drive

I/P

Shift

Reg

Conversion and I/O

Control Logic

IN+

IN-

REFIN

+VA

+VBD

SDO

SDI

SCLK

CONVST

GND

ADS8319

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

ADS8319

SLAS600C–MAY2008–REVISEDDECEMBER2016

ADS831916-Bit,500-kSPS,SerialInterface,Micropower,Miniature,

SARAnalog-to-DigitalConverter

1

1Features

1

•500-kHzSampleRate

•16-BitResolution

•ZeroLatencyatFullSpeed

•Unipolar,Single-EndedInputRange:0VtoV

REF

•SPI-CompatibleSerialInterfaceWithDaisy-Chain

Option

•ExcellentPerformance:

–93.6-dBSNR(Typical)at10-kHzInput

––106-dBTHD(Typical)at10-kHzInput

–±1.5-LSB(Maximum)INL

–±1-LSB(Maximum)DNL

•LowPowerDissipation:

18mW(Typical)at500kSPS

•PowerScalesLinearlywithSpeed:

3.6mW/100kSPS

•PowerDissipationDuringPower-DownState:

0.25µW(Typical)

•10-PinVSSOPandVSONPackages

2Applications

•Battery-PoweredEquipment

•DataAcquisitionSystems

•InstrumentationandProcessControls

•MedicalElectronics

•OpticalNetworking

3Description

TheADS8319deviceisa16-bit,500-kSPS,analog-

to-digitalconverter(ADC)thatoperateswitha2.25-V

to5.5-Vexternalreference.Thedeviceincludesa

capacitor-based,successive-approximationregister

(SAR)ADCwithinherentsampleandhold.

Thedeviceincludesa50-MHz,SPI-compatibleserial

interface.Theinterfaceisdesignedtosupportdaisy-

chainingorcascadingofmultipledevices.

Furthermore,aBusyIndicatormakessynchronizing

withthedigitalhosteasy.

Thedeviceunipolar,single-endedinputrange

supportsaninputswingof0Vto+V

REF

.

Deviceoperationisoptimizedforvery-lowpower

operationandthepowerconsumptiondirectlyscales

withspeed.Thisfeaturemakesthedeviceattractive

forlower-speedapplications.Thedeviceisavailable

in10-pinVSSOPandVSONpackages.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

ADS8319

VSSOP(10)3.00mm×3.00mm

VSON(10)3.00mm×3.00mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

SimplifiedSchematic

Product specificaties