FEATURESDESCRIPTION
产品
Successiveapproximation 寄存器
时钟
比较器
CS
CDAC
缓存区
REF
CAP
R1
在
10 k
Ω
4.9 k
Ω
内部的
+2.5 v ref
4 k
Ω
串行
数据
输出
&放大;
控制
BUSY
DATACLK
数据
2.5 k
Ω
9.8 k
Ω
R2
在
R3
在
ext/int
r/c
sb/btc
PWRD
ADS8509
SLAS324A–OCTOBER2004–REVISEDJUNE2005
16-bit250-kspsserialcmossamplinganalog-至-digitalconverter
•
250-khzsamplingrate
theads8509isacomplete16-bitsampling
相似物-至-数字的(一个/d)converterusingstate-的-这-艺术
•
4-v,5-v,10v,±3.33-v,±5-v,and±10-vinput
cmosstructures.itcontainsacomplete16-位,
范围
电容-为基础,successiveapproximationregister
•
±2.0lsbmaxinl
(sar)一个/dconverterwithsample-和-支撑,谈及-
•
±1lsbmaxdnl,16-bitnomissingcodes
ence,时钟,andaserialdatainterface.datacanbe
outputusingtheinternalclockorcanbe
•
SPICompatibleSerialOutputwith
synchronizedtoanexternaldataclock.theads8509
daisy-chain(tag)特性
alsoprovidesanoutputsynchronizationpulsefor
•
single5-vsupply
easeofusewithstandarddspprocessors.
•
管脚-compatiblewithads7809(lowspeed)
theads8509isspecifiedata250-khzsamplingrate
and12-bitads8508/7808
overthefulltemperaturerange.precisionresistors
•
UsesInternalorExternalReference
providevariousinputrangesincluding±10Vand0V
•
70-mwtyppowerdissipationat250ksps
to5v,whiletheinnovativedesignallowsoperation
fromasingle+5-vsupplywithpowerdissipation
•
20-pinsoand28-pinssoppackages
under100mw.
•
SimpleDSPInterface
theads8509isavailablein20-pinsoand28-管脚
ssoppackages,bothfullyspecifiedforoperation
overtheindustrial-40°cto85°ctemperaturerange.
•
IndustrialProcessControl
•
DataAcquisitionSystems
•
DigitalSignalProcessing
•
MedicalEquipment
•
仪器
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2004–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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