I2C tIMInG CHARACteRIstICs The l denotes " />
參數(shù)資料
型號(hào)： LTC2309IUF#TRPBF
廠商： Linear Technology
文件頁(yè)數(shù)： 22/26頁(yè)
文件大?。?/td> 0K
描述： IC ADC 12BIT SAR 24-QFN
標(biāo)準(zhǔn)包裝： 2,500
位數(shù)： 12
采樣率（每秒）： 14k
數(shù)據(jù)接口： I²C，串行
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 15mW
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 24-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 24-QFN 裸露焊盤（4x4）
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 8 個(gè)單端，單極；8 個(gè)單端，雙極；4 個(gè)差分，單極；4 個(gè)差分，雙極
配用： DC1337A-ND - BOARD SAR ADC LTC2309
LTC2309
2309fd
I2C tIMInG CHARACteRIstICs The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fSCL
SCLClockFrequency
l
400
kHz
tHD(SDA) HoldTime(Repeated)STARTCondition
l
0.6
s
tLOW
LOWPeriodoftheSCLPin
l
1.3
s
tHIGH
HIGHPeriodoftheSCLPin
l
0.6
s
tSU(STA)
Set-UpTimeforaRepeatedSTARTCondition
l
0.6
s
tHD(DAT) DataHoldTime
l
0
0.9
s
tSU(DAT) DataSet-UpTime
l
100
ns
tr
RiseTimeforSDA/SCLSignals
(Note12)
l
20+0.1CB
300
ns
tf
FallTimeforSDA/SCLSignals
(Note12)
l
20+0.1CB
300
ns
tSU(STO) Set-UpTimeforSTOPCondition
l
0.6
s
tBUF
BusFreeTimeBetweenaSTOPandSTARTCondition
l
1.3
s
ADC tIMInG CHARACteRIstICs The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fSMPL
ThroughputRate(SuccessiveReads)
l
14
ksps
tCONV
ConversionTime
(Note9)
l
1.3
1.8
s
tACQ
AcquisitionTime
(Note9)
l
240
ns
tREFWAKE REFCOMPWake-UpTime(Note13)
CREFCOMP=10F,CREF=2.2F
200
ms
Note 1:StressesbeyondthoselistedunderAbsoluteMaximumRatings
maycausepermanentdamagetothedevice.ExposuretoanyAbsolute
MaximumRatingconditionforextendedperiodsmayaffectdevice
reliabilityandlifetime.
Note 2:Allvoltagevaluesarewithrespecttoground.
Note 3:WhenthesepinvoltagesaretakenbelowgroundoraboveVDD,
theywillbeclampedbyinternaldiodes.Theseproductscanhandleinput
currentsgreaterthan100mAbelowgroundoraboveVDDwithoutlatchup.
Note 4:VDD=5V,fSMPL=14kspsinternalreferenceunlessotherwise
noted.
Note 5:Linearity,offsetandfull-scalespecificationsapplyfora
single-endedanaloginputwithrespecttoCOM.
Note 6:Integralnonlinearityisdefinedasthedeviationofacodefroma
straightlinepassingthroughtheactualendpointsofthetransfercurve.
Thedeviationismeasuredfromthecenterofthequantizationband.
Note 7:Bipolarzeroerroristheoffsetvoltagemeasuredfrom–0.5LSB
whentheoutputcodeflickersbetween000000000000and11111111
1111.Unipolarzeroerroristheoffsetvoltagemeasuredfrom+0.5LSB
whentheoutputcodeflickersbetween000000000000and00000000
0001.
Note 8:Full-scalebipolarerroristheworst-caseof–FSor+FSuntrimmed
deviationfromidealfirstandlastcodetransitionsandincludestheeffect
ofoffseterror.Unipolarfull-scaleerroristhedeviationofthelastcode
transitionfromidealandincludestheeffectofoffseterror.
Note 9:Guaranteedbydesign,notsubjecttotest.
Note 10:AllspecificationsindBarereferredtoafull-scale±2.048Vinput
witha2.5Vreferencevoltage.
Note 11:Fulllinearbandwidthisdefinedasthefull-scaleinputfrequency
atwhichtheSINADdegradesto60dBor10bitsofaccuracy.
Note 12:CB=capacitanceofonebuslineinpF(10pF≤CB≤400pF).
Note 13:REFCOMPwake-uptimeisthetimerequiredfortheREFCOMP
pintosettlewithin0.5LSBat12-bitresolutionofitsfinalvalueafter
wakingupfromSLEEPmode.
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