Texas Instruments ADS7044 Handleiding

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AVDD

AINP

AINM

GND

AVDD

Device

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C

Actual Device Size

1.5 x 1.5 x 0.35(H) mm

1

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5

mm

1

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5

mm

RUG (8)

AVDD used as

Reference for device

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R

R

Product

Folder

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Reference

Design

ADS7044

SBAS682D–NOVEMBER2014–REVISEDDECEMBER2015

ADS7044Ultra-LowPower,Ultra-SmallSize,12-Bit,1-MSPS,SARADC

1Features3Description

TheADS7044isa1-MSPS,analog-to-digital

1

•Industry'sFirstSARADCwithNanowattPower

converter(ADC).Thedevicesupportsawideanalog

Consumption:

inputvoltagerange(±1.65Vto±3.6V)andincludes

–261µWat1MSPSwith1.8-VAVDD

acapacitor-based,successive-approximationregister

–900µWat1MSPSwith3-VAVDD

(SAR)ADCwithaninherentsample-and-holdcircuit.

TheSPI-compatibleserialinterfaceiscontrolledby

–90µWat100kSPSwith3-VAVDD

theCSandSCLKsignals.Theinputsignalis

–Lessthan1µWat1kSPSwith3-VAVDD

sampledwiththeCSfallingedgeandSCLKisused

•Industry'sSmallestSARADC:

forconversionandserialdataoutput.Thedevice

supportsawidedigitalsupplyrange(1.65Vto3.6V),

–X2QFN-8Packagewith2.25-mm

2

Footprint

enablingdirectinterfacetoavarietyofhost

•1-MSPSThroughputwithZeroDataLatency

controllers.ThedevicecomplieswiththeJESD8-7A

•WideOperatingRange:

standardfornormalDVDDrange(1.65Vto1.95V).

–AVDD:1.65Vto3.6V

Thedeviceisavailablein8-pin,miniature,leaded,

–DVDD:1.65Vto3.6V(IndependentofAVDD)

andX2QFNpackagesandisspecifiedforoperation

from–40°Cto125°C.Miniatureform-factorand

–TemperatureRange:–40°Cto125°C

extremelylow-powerconsumptionmakethisdevice

•ExcellentPerformance:

suitableforspace-constrained,battery-powered

–12-BitResolutionwithNMC

applications.

–±1-LSB(Max)DNLandINL

DeviceInformation

(1)

–71-dBSNRwith3-VAVDD

PARTNAMEPACKAGEBODYSIZE(NOM)

––85-dBTHDwith3-VAVDD

X2QFN(8)1.50mm×1.50mm

•Unipolar,DifferentialInputRange:ADS7044

VSSOP(8)2.30mm×2.00mm

–AVDDtoAVDD

(1)Forallavailablepackages,seetheorderableaddendumat

•IntegratedOffsetCalibration

theendofthedatasheet.

•SPI™-CompatibleSerialInterface:16MHz

space

•JESD8-7ACompliantDigitalI/O

space

2Applications

space

•Low-PowerDataAcquisition

TypicalApplication

•Battery-PoweredHandheldEquipment

•LevelSensors

•UltrasonicFlowMeters

•MotorControls

•WearableFitness

•PortableMedicalEquipment

•HardDrives

•GlucoseMeters

NOTE:Thedeviceissmallerthana0805

(2012metric)SMDcomponent.

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Product specificaties