www.德州仪器.com
FEATURESDESCRIPTION
产品
接口
逻辑
电源-在
重置
输入
寄存器
输入
寄存器
DAC
寄存器
16 位
DAC
16 位
DAC
缓存区
缓存区
DAC
寄存器
电源-向下
逻辑
D15
D0
CS
LDAC
RST
IOV
DD
A0
V
FBA
V
FBB
V
OUTA
V
OUTB
V
OUTC
V
OUTD
V
FBC
V
FBD
IOGND V
DD
地
V
REFA
+ V
REFA
− V
REFB
+ V
REFB
−
DAC8544
PD
V
REFC
+ V
REFC
−V
REFD
+V
REFD
−
A1
r/w
DAC8544
SLAS420–MAY2004
四方形,16-位,栏杆-至-railvoltageoutput,parallelinterface,
数字的-至-analogconverter
•
singlesupply:+2.7vto+5.5v
thedac8544isalow-电源,四方形-频道,16-位,
•
micropoweroperation:950µa@5v
voltageoutputdac.itson-chipprecisionoutput
amplifierallowsrail-至-railvoltageswingtobe
•
栏杆-至-railvoltageoutput
achievedattheoutput.thedac8544is16-位
•
ultralowcrosstalk:–110db
monotonicandoffersexceptionalabsoluteaccuracy
•
settlingtime:10µsto
±
0.003%fsr
withultralowcrosstalk.thedac8544usesa16-位
parallelinterfaceandfeaturesadditionalpower-向下
•
16-bitmonotonic
functionpinsaswellashardware-使能,synchron-
•
offseterror:
±
0.3mv
ousdacupdatingandresetcapability.
•
gainerror:
±
1mV
TheDAC8544requiresanexternalreferencevoltage
•
totalerror:
±
3mV
tosettheoutputrangeofthedac.thedevice
•
每-channelv
REF+
,v
REF–
,v
FB
管脚
incorporatesapower-在-resetcircuitthatensures
•
logiccompatible:+1.8vto+5.5v
thattheDACoutputspowerupatzerovoltand
•
ReadbackCapability
remainsthereuntilavalidwritetakesplace.在
增加,thedac8544containsapower-downfea-
•
DoubleBufferedInputs
ture,accessedviapdpin,thatreducesthecurrent
•
SimultaneousorSequentialUpdate
consumptionofthedeviceto400naat5v.这
•
施密特-triggereddigitalinputs
powerconsumptionistypicallyunder5mWat
•
HardwareReset
V
DD
=5v.
•
48-leadtqfppackage
thedac8544isavailableina48-leadtqfppack-
agewithanoperatingtemperaturerangeof–40
°
Cto
+105
°
c.
•
ProcessControl
•
DataAcquisitionSystems
•
关闭-loopservocontrol
•
PCPeripherals
•
OpticalNetworking
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2004,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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