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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： | 3/22页 |
| 文件大小： | 575K |
| 代理商： | LTC1403ACMSE-1#TRPBF |
LTC1403-1/LTC1403A-1
14031fb
applications inFormation
DRIVING THE ANALOG INPUT
ThedifferentialanaloginputsoftheLTC1403-1/LTC1403A-1
areeasytodrive.Theinputsmaybedrivendifferentiallyor
asasingle-endedinput(i.e.,theAIN–inputissettoVCM).
Bothdifferentialanaloginputs,AIN+withAIN–,aresampled
atthesameinstant.Anyunwantedsignalthatiscommon
tobothinputsofeachinputpairwillbereducedbythe
commonmoderejectionofthesample-and-holdcircuit.
Theinputsdrawonlyonesmallcurrentspikewhilecharging
thesample-and-holdcapacitorsattheendofconversion.
Duringconversion,theanaloginputsdrawonlyasmall
leakagecurrent.Ifthesourceimpedanceofthedriving
circuitislow,thentheLTC1403-1/LTC1403A-1inputscan
bedrivendirectly.Assourceimpedanceincreases,sowill
acquisitiontime.Forminimumacquisitiontimewithhigh
sourceimpedance,abufferamplifiermustbeused.The
mainrequirementisthattheamplifierdrivingtheanalog
input(s)mustsettleafterthesmallcurrentspikebefore
thenextconversionstarts(settlingtimemustbe39ns
forfullthroughputrate).Alsokeepinmindwhilechoos-
inganinputamplifier,theamountofnoiseandharmonic
distortionaddedbytheamplifier.
CHOOSING AN INPUT AMPLIFIER
Choosinganinputamplifieriseasyifafewrequirementsare
takenintoconsideration.First,tolimitthemagnitudeofthe
voltagespikeseenbytheamplifierfromchargingthesampling
capacitor,chooseanamplifierthathasalowoutputimped-
ance(<100Ω)attheclosed-loopbandwidthfrequency.For
example,ifanamplifierisusedwithagainof1andhasa
unity-gainbandwidthof50MHz,thentheoutputimpedance
at50MHzmustbelessthan100Ω.Thesecondrequire-
mentisthattheclosed-loopbandwidthmustbegreater
than40MHztoensureadequatesmall-signalsettlingfor
fullthroughputrate.Ifsloweropampsareused,more
timeforsettlingcanbeprovidedbyincreasingthetime
betweenconversions.Thebestchoiceforanopampto
drivetheLTC1403-1/LTC1403A-1willdependontheap-
plication.Generally,applicationsfallintotwocategories:
ACapplicationswheredynamicspecificationsaremost
criticalandtimedomainapplicationswhereDCaccuracy
andsettlingtimearemostcritical.Thefollowinglistis
asummaryoftheopampsthataresuitablefordriving
theLTC1403-1/LTC1403A-1.(Moredetailedinformation
isavailableintheLinearTechnologyDatabooksandour
websiteatwww.linear.com.)
LTC1566-1:LowNoise2.3MHzContinuousTimeLow-
PassFilter.
LT1630:Dual30MHzRail-to-RailVoltageFBAmplifier.
2.7Vto±15Vsupplies.VeryhighAVOL,500Voffsetand
520nssettlingto0.5LSBfora4Vswing.THDandnoise
are–93dBto40kHzandbelow1LSBto320kHz(AV=1,
2VP-Pinto1kΩ,VS=5V),makingthepartexcellentfor
ACapplications(to1/3Nyquist)whererail-to-railperfor-
manceisdesired.QuadversionisavailableasLT1631.
LT1632:Dual45MHzRail-to-RailVoltageFBAmplifier.
2.7Vto±15Vsupplies.VeryhighAVOL,1.5mVoffsetand
400nssettlingto0.5LSBfora4Vswing.Itissuitablefor
applicationswithasingle5Vsupply.THDandnoiseare
–93dBto40kHzandbelow1LSBto800kHz(AV=1,
2VP-Pinto1kΩ,VS=5V),makingthepartexcellentfor
ACapplicationswhererail-to-railperformanceisdesired.
QuadversionisavailableasLT1633.
LT1813:Dual100MHz750V/s3mAVoltageFeedback
Amplifier.5Vto±5Vsupplies.Distortionis–86dBto
100kHzand–77dBto1MHzwith±5Vsupplies(2VP-P
into500Ω).ExcellentpartforfastACapplicationswith
±5Vsupplies.
LT1801:80MHzGBWP,–75dBcat500kHz,2mA/Ampli-
fier,8.5nV/√Hz.
LT1806/LT1807:325MHzGBWP,–80dBcDistortionat
5MHz,Unity-GainStable,R-RInandOut,10mA/Ampli-
fier,3.5nV/√Hz.
LT1810:180MHzGBWP,–90dBcDistortionat5MHz,
Unity-GainStable,R-RInandOut,15mA/Amplifier,
16nV/√Hz.
LT1818/LT1819:400MHz,2500V/s,9mA,Single/Dual
VoltageModeOperationalAmplifier.
LT6200:165MHzGBWP,–85dBcDistortionat1MHz,
Unity-GainStable,R-RInandOut,15mA/Amplifier,
0.95nV/√Hz.
LT6203:100MHzGBWP,–80dBcDistortionat1MHz,
Unity-GainStable,R-RInandOut,3mA/Amplifier,
1.9nV/√Hz.
LT6600-10:Amplifier/FilterDifferentialIn/Outwith10MHz
Cutoff.
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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