Texas Instruments DAC7571 Handleiding

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V

DD

SCLA0

GND

Output

Buffer

Power Down

Control Logic

Resistor

Network

Ref (+) REF(-)

12-Bit

DAC

I

2

C

Control

Logic

DAC

Register

Power-On

Reset

V

OUT

SDA

D

A

C

7

5

1

2

DAC7571

www.ti.com

SLAS374D–FEBRUARY2003–REVISEDJANUARY2014

+2.7Vto+5.5V,I

2

CINTERFACE(RECEIVEONLY),VOLTAGEOUTPUT,

12-BITDIGITAL-TO-ANALOGCONVERTER

CheckforSamples:DAC7571

1

FEATURES

DESCRIPTION

2

•MicropowerOperation:140µA@5V

TheDAC7571isalow-power,singlechannel,12-bit

•Power-OnResettoZero

bufferedvoltageoutputDAC.Itson-chipprecision

•+2.7-Vto+5.5-VPowerSupply

outputamplifierallowsrail-to-railoutputswingtobe

achieved.TheDAC7571utilizesanI

2

Ccompatible

•SpecifiedMonotonicbyDesign

twowireserialinterfacethatoperatesatclockrates

•SettlingTime:10µsto±0.003%FS

upto3.4Mbpswithaddresssupportofuptotwo

•I

2

C™Interfaceupto3.4Mbps

DAC7571sonthesamedatabus.

•On-ChipOutputBufferAmplifier,Rail-to-Rail

TheoutputvoltagerangeoftheDACissettoV

DD

.

Operation

TheDAC7571incorporatesapower-on-resetcircuit

•Double-BufferedInputRegister

thatensuresthattheDACoutputpowersupatzero

voltsandremainsthereuntilavalidwritetothe

•AddressSupportforuptoTwoDAC7571s

devicetakesplace.TheDAC7571containsapower-

•Small6-LeadSOTPackage

downfeature,accessedviatheinternalcontrol

•OperationFrom–40°Cto105°C

register,thatreducesthecurrentconsumptionofthe

deviceto50nAat5V.

APPLICATIONS

Thelowpowerconsumptionofthispartinnormal

•ProcessControl

operationmakesitideallysuitedforportablebattery

operatedequipment.Thepowerconsumptionisless

•DataAcquisitionSystems

than0.7mWatV

DD

=5Vreducingto1µWinpower-

•Closed-LoopServoControl

downmode.

•PCPeripherals

TheDAC7571isavailableina6-leadSOT23

•PortableInstrumentation

package.

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2I

2

CisatrademarkofPhilipsCorporation.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2003–2014,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties