Texas Instruments ADS7052 Handleiding

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Single ADC Circuit

Simultaneous Sampling Circuit

Optical

HOST

CS

SDO

SCLK

ADC 2

CS

SCLK

SDO

ADC 1

ADC

SONAR

Votlage/

Current

+

ADC Package Size

1.5 (L) x 1.5 (W) x 0.35 (H) mm

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

ADS7052

SBAS858–DECEMBER2017

ADS705214-Bit,1-MSPS,Single-EndedInput,Small-Size,Low-PowerSARADC

1

1Features

1

•1-MSPSThroughput

•SmallPackageSize:

–X2QFN-8Package(1.5mm×1.5mm)

•UnipolarInputRange:0VtoAVDD

•WideOperatingRange:

–AVDD:1.65Vto3.6V

–DVDD:1.65Vto3.6V(IndependentofAVDD)

–TemperatureRange:–40°Cto+125°C

•ExcellentPerformance:

–14-BitNMCDNL,±2-LSBINL

–74.5-dBSINADat2kHz

–72.5-dBSINADat200kHz

•LowPowerConsumption:

–1.5mWat1MSPSWith3.3-VAVDD

–160µWat100kSPSWith3.3-VAVDD

–40µWat100kSPSWith1.8-VAVDD

•IntegratedOffsetCalibration

•SPI-CompatibleSerialInterface:24MHz

•JESD8-7ACompliantDigitalI/O

2Applications

•OpticalEncoders

•SonarReceivers

•FishFinders

•I-QDemodulators

•OpticalLineCardsandModules

•ThermalImagingCameras

•UltrasonicFlowMeters

•HandheldRadios

3Description

TheADS7052devicebelongstoafamilyofpin-to-pin

compatible,high-speed,low-power,single-channel

successive-approximationregister(SAR)typeanalog-

to-digitalconverters(ADCs).Thedevicefamily

includesmultipleresolutions,throughputs,andanalog

inputvariants(seeTable1foralistofdevices).

TheADS7052isa14-bit,1-MSPSSARADCthat

supportsasingle-endedinputintherangeof0Vto

AVDD,forAVDDintherangeof1.65Vto3.6V.

Theinternaloffsetcalibrationfeaturemaintains

excellentoffsetspecificationsovertheentireAVDD

andtemperatureoperatingrange.

ThedevicesupportsanSPI-compatibleserial

interfacethatiscontrolledbytheCSandSCLK

signals.TheinputsignalissampledwiththeCS

fallingedgeandSCLKisusedforbothconversion

andserialdataoutput.Thedevicesupportsawide

digitalsupplyrange(1.65Vto3.6V),enablingdirect

interfacingtoavarietyofhostcontrollers.The

ADS7052complieswiththeJESD8-7Astandardfora

normalDVDDrange(1.65Vto1.95V).

TheADS7052isavailableinan8-pin,small,X2QFN

packageandisspecifiedovertheextendedindustrial

temperaturerange(–40°Cto+125°C).Thesmall

form-factorandextremely-lowpowerconsumption

makethisdevicesuitableforspace-constrainedand

battery-poweredapplicationsthatrequirehigh-speed,

high-resolutiondataacquisition.

DeviceInformation

(1)

PARTNAMEPACKAGEBODYSIZE(NOM)

ADS7052X2QFN(8)1.50mm×1.50mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

TypicalApplication

Product specificaties