Texas Instruments DAC70502 Handleiding

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VOUTA

DAC

Register

DAC

Buffer

BUF

Resistive Network

Interface Logic

Power On Reset

VREFIO

SCLK or SCL

SDIN or SDA

SYNC

AGND

VDD

DAC

Internal

Reference

SPI2C

or A0

RSTSEL

Channel A

Channel B

VOUTB

Power Down Logic

Product

Folder

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Now

Technical

Documents

Tools &

Software

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

DAC80502

,

DAC70502

,

DAC60502

SBAS793A–NOVEMBER2019–REVISEDAPRIL2020

DACx0502,Dual,16-Bit,14-Bit,and12-Bit,1-LSBINL,Voltage-OutputDACs

WithPrecisionInternalReference

1

1Features

1

•16-bitperformance:1-LSBINLandDNL(max)

•Lowglitchenergy:4nV-s

•Widepowersupply:2.7Vto5.5V

•Bufferedoutputrange:5V,2.5V,or1.25V

•Lowpower:1mAperchannelat5.5V

•Integrated5-ppm/˚C(max),2.5-Vprecision

reference

•Pin-selectableserialinterface

–3-wire,SPIcompatibleupto50-MHz

–2-wire,I

2

Ccompatible

•Power-on-reset:zeroscaleormidscale

•1.62-VVIHwithVDD=5.5V

•Temperaturerange:–40˚Cto+125˚C

•Package:Tiny10-pinWSON

2Applications

•Oscilloscope(DSO)

•Batterytest

•Semiconductortest

•Dataacquisition(DAQ)

•LCDtest

•Smallcellbasestation

•Analogoutputmodule

•Processanalytics(pH,gas,concentration,force

andhumidity)

•DCpowersupply,acsource,electronicload

3Description

The16-bitDAC80502,14-bitDAC70502,and12-bit

DAC60502(DACx0502)digital-to-analogconverters

(DACs)arehighlyaccurate,low-powerdeviceswith

voltageoutput.

TheDACx0502offerlinearityof<1LSB.Thehigh

accuracycombinedwithtinypackagemakethe

DACx0502anexcellentchoiceforapplicationssuch

asgainandoffsetcalibration,currentorvoltageset

pointgeneration,andpower-supplycontrol.These

devicesincludea2.5-V,5-ppm/°Cinternalreference,

givingfull-scaleoutputvoltagerangesof1.25V,

2.5V,or5V.TheDACx0502incorporateapower-

on-resetcircuitthatmakessuretheDACoutput

powersupatzeroscaleormidscalebasedonthe

statusofRSTSELpin,andremainsatthatscaleuntil

avalidcodeiswrittentothedevice.

ThedigitalinterfaceoftheDACx0502canbe

configuredtoSPIorI

2

CmodeusingtheSPI2Cpin.

InSPImode,theDACx0502useaversatile3-wire

serialinterfacethatoperatesatclockratesupto50

MHz.InI

2

Cmode,theDACx0502operatein

standard(100kbps),fast(400kbps),andfast+(1.0

Mbps)modes.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

DAC80502

WSON(10)2.50mm×2.50mmDAC70502

DAC60502

(1)Forallavailablepackages,seethepackageoptionaddendum

attheendofthedatasheet.

FunctionalBlockDiagram

Product specificaties