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| 型号： | LTC1403ACMSE-1#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | ADC |
| 英文描述： | Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: 0°C to +70°C |
| 中文描述： | 1-CH 14-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO10 |
| 封装： | LEAD FREE, PLASTIC, MSOP-10 |
| 文件页数： | 6/22页 |
| 文件大小： | 575K |
| 代理商： | LTC1403ACMSE-1#TRPBF |
LTC1403-1/LTC1403A-1
14031fb
applications inFormation
Board Layout and Bypassing
Wirewrapboardsarenotrecommendedforhighresolu-
tionand/orhighspeedA/Dconverters.Toobtainthebest
performancefromtheLTC1403-1/LTC1403A-1,aprinted
circuitboardwithgroundplaneisrequired.Layoutfor
theprintedcircuitboardshouldensurethatdigitaland
analogsignallinesareseparatedasmuchaspossible.
Inparticular,careshouldbetakennottorunanydigital
trackalongsideananalogsignaltrack.Ifoptimumphase
matchbetweentheinputsisdesired,thelengthofthetwo
inputwiresshouldbekeptmatched.
High quality tantalum and ceramic bypass capacitors
shouldbeusedattheVDDandVREFpinsasshowninthe
BlockDiagramonthefirstpageofthisdatasheet.Forop-
timumperformance,a10FsurfacemountAVXcapacitor
witha0.1FceramicisrecommendedfortheVDDandVREF
pins.Alternatively,10Fceramicchipcapacitorssuchas
MurataGRM219R60J106Mmaybeused.Thecapacitors
mustbelocatedasclosetothepinsaspossible.Thetraces
connectingthepinsandthebypasscapacitorsmustbe
keptshortandshouldbemadeaswideaspossible.
Figure7showstherecommendedsystemgroundconnec-
tions.Allanalogcircuitrygroundsshouldbeterminatedat
theLTC1403-1/LTC1403A-1GND(Pins4,5,6andexposed
pad).ThegroundreturnfromtheLTC1403-1/LTC1403A-1
(Pins 4, 5, 6 and exposed pad) to the power supply
shouldbelowimpedancefornoisefreeoperation.Digital
circuitrygroundsmustbeconnectedtothedigitalsupply
common.InapplicationswheretheADCdataoutputsand
controlsignals areconnectedtoacontinuously active
microprocessorbus,itispossibletogeterrorsinthe
conversionresults.Theseerrorsareduetofeedthrough
fromthemicroprocessortothesuccessiveapproximation
comparator.Theproblemcanbeeliminatedbyforcingthe
microprocessorintoaWaitstateduringconversionorby
usingthree-statebufferstoisolatetheADCdatabus.
POWER-DOWN MODES
Uponpower-up,theLTC1403-1/LTC1403A-1isinitialized
totheactivestateandisreadyforconversion.TheNap
andSleepmodewaveformsshowthepower-downmodes
fortheLTC1403-1/LTC1403A-1.TheSCKandCONVinputs
controlthepower-downmodes(seeTimingDiagrams).
TworisingedgesatCONV,withoutanyinterveningris-
ingedgesatSCK,puttheLTC1403-1/LTC1403A-1inNap
modeandthepowerdraindropsfrom14mWto6mW.
The internal reference remains powered in Nap mode.
Figure 7. Recommended Layout
14031F07
FREQUENCY (Hz)
MAGNITUDE
(dB)
–60
–30
–20
14031 F06b
–70
–80
–120
–100
0
–10
–40
–50
–90
–110
0
371k
185k
556k
741k
Figure 6b. LTC1403-1 6MHz Sine Wave 4096 Point FFT Plot
with the LT1819 Driving the Inputs Differentially
相关PDF资料 |
PDF描述 |
|---|---|
| LTC1403AIMSE-1#PBF | Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: -40°C to +85°C |
| LTC1403AIMSE-1#TRPBF | Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: -40°C to +85°C |
| LTC1403CMSE-1#PBF | Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: 0°C to +70°C |
| LTC1403CMSE-1#TRPBF | Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: 0°C to +70°C |
| LTC1403IMSE-1#PBF | Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: -40°C to +85°C |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1403ACMSEPBF | 制造商:Linear Technology 功能描述:ADC,LTC1403A 14bit 2.8MSPS SPI MSOP |
| LTC1403AHMSE | 制造商:Linear Technology 功能描述:ADC Single SAR 2.8Msps 14-bit Serial 10-Pin MSOP EP |
| LTC1403AHMSE#PBF | 功能描述:IC ADC 14BIT 2.8MSPS DIFF 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| LTC1403AHMSE#TRPBF | 功能描述:IC ADC 14BIT 2.8MSPS DIFF 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| LTC1403AIMSE | 功能描述:IC ADC 14BIT 2.8MSPS DIFF 10MSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
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