參數(shù)資料
型號: DC1337A
廠商: Linear Technology
文件頁數(shù): 9/26頁
文件大?。?/td> 0K
描述: BOARD SAR ADC LTC2309
軟件下載: QuikEval System
設(shè)計(jì)資源: DC1337A Design File
DC1337A Schematic
標(biāo)準(zhǔn)包裝: 1
系列: QuikEval™
ADC 的數(shù)量: 1
位數(shù): 12
采樣率(每秒): 14k
數(shù)據(jù)接口: I²C,串行
在以下條件下的電源(標(biāo)準(zhǔn)): 1.5mW @ 1kSPS
已用 IC / 零件: LTC2309
已供物品:
相關(guān)產(chǎn)品: LTC2309IUF#TRPBF-ND - IC ADC 12BIT SAR 24-QFN
LTC2309IF#TRPBF-ND - IC ADC 12BIT SAR 20-TSSOP
LTC2309IF#PBF-ND - IC ADC 12BIT SAR 20-TSSOP
LTC2309HF#TRPBF-ND - IC ADC 12BIT SAR 20-TSSOP
LTC2309HF#PBF-ND - IC ADC 12BIT SAR 20-TSSOP
LTC2309CUF#TRPBF-ND - IC ADC 12BIT SAR 24-QFN
LTC2309CF#TRPBF-ND - IC ADC 12BIT SAR 20-TSSOP
LTC2309CF#PBF-ND - IC ADC 12BIT SAR 20-TSSOP
LTC2309IUF#PBF-ND - IC ADC 12BIT SAR 24-QFN
LTC2309CUF#PBF-ND - IC ADC 12BIT SAR 24-QFN
LTC2309
2309fd
AppLICAtIOns InFORMAtIOn
atesaNACKsignalindicatingtheconversioncycleis
inprogress.
Continuous Read/Write
Oncetheconversioncycleiscomplete,theLTC2309
canbewrittentoandthenreadfromusingtherepeated
START(Sr)command.Figure10showsacyclewhich
beginswithadatawrite,arepeatedSTART,followed
byareadandconcludedwithaSTOPcommand.After
all16bitsarereadout,aconversionmaybeinitiated
byissuingaSTOPcommand.Thefollowingconver-
sionwillbeperformedusingthenewlyprogrammed
data.
S
CONVERSION
NAP
DATA OUTPUT CONVERSION
CONVERSION
NAP
DATA
OUTPUT
R ACK READ
7-BIT ADDRESS
P
S
R ACK
2309 F09
READ
7-BIT ADDRESS
P
Figure 9. Consecutive Reading with the Same Configuration
Continuous Read
Inapplicationswherethesameinputchannelissampled
eachcycle,conversionscanbecontinuouslyperformed
andreadwithoutawritecycle(seeFigure9).TheDIN
wordremainsunchangedfromthelastvaluewritten
intothedevice.Ifthedevicehasnotbeenwrittento
sincepower-up,theDINworddefaultstoall0s(S/D=
O/S=S0=S1=UNI=SLP=0).Attheendofaread
operation,aSTOPconditionmaybegiventostartanew
conversion.Attheconclusionoftheconversioncycle,
thenextresultmaybereadusingthemethoddescribed
above.Iftheconversioncycleisnotconcludedanda
validaddressselectsthedevice,theLTC2309gener-
S
CONVERSION
NAP
DATA INPUT
ADDRESS
CONVERSION
DATA
OUTPUT
W ACK WRITE
7-BIT ADDRESS
Sr
R ACK
2309 F10
READ
7-BIT ADDRESS
P
Figure 10. Write, Read, START Conversion
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