settinginfinidock
infinidock 时间:2021-01-27 阅读:()
ApplicationsEngineeringNote:AEN-0103CADKDOCApplicationoftheTypeCHRHighResistancePrecisionChipResistorsWhenusingtheTypeCHRresistorthreefactorsarekeytooptimizingtheperformanceofthishighresistanceprecisionchipresistor:Temperature,CircuitBoardLayout,andSolderAttachment.
Thesehighresistanceprecisionchipresistorsaredesignedforuseinextremelylowsignaldetection/amplificationcircuits.
Thedesignercanchoosefromanumberofavailablestandardresistancevaluestooptimizethecircuitdesign.
ApplicationsincludePhotodiodesignalamplification,photomultipliers,ionizationdetection,etc.
Theseprecisionhighresistancechipresistorscanalsobeidealforuseastheinputresistorforhighimpedancevoltagedivisionandgainsetting.
OperatingTemperaturevs.
optimizedperformance:TheTypeCHRHighResistancePrecisionChiphasaverylowtemperaturecoefficientrelativetotheoperatingtemperature.
Forresistanceof10Megupto25Megthelow±25ppm/°Cappliesoverthetemperaturerangeof–40°Cto+85°C,referencedto+25°C.
Forresistancevaluesabove25Megthetemperaturecoefficientisdefinedintwotemperaturerangestohelpinoptimizingperformance.
AtemperatureCoefficientof±35ppm/°Cappliesfrom+10°Cto+40°C,referencedto+25°Cand±70ppm/°Cappliesoverthetemperaturerangeof–40°Cto+85°C,referencedto+25°C.
Formaximumstability,theproductshouldbeoperatedinanambienttemperaturebelow+85°C.
OperatingStability,TCperformancevs.
circuitboardlayout:TheTypeCHRHighResistancePrecisionChipResisorhasexcellentTemperatureCoefficientandstabilityspecifications.
Toachievethebestperformanceitisimportanttominimizethecontributionofcircuitboardissuesrelativetohighresistanceleakage.
TooptimizethelayoutforthischipresistorthecircuitboardshouldhaveaslotdesignedintheboarddirectlyundertheresistorelementtoprovideforenhancedcleaningunderReleaseDate:03/12/03,Rev.
A,Rev.
Date:03/12/03Page1of1CADKDOCCaddockElectronics,2003AcopyofthisApplicationNotecanbeobtainedatwww.
caddock.
comthishighresistancechip.
Additionally,theslotwillprovidehighinsulationresistance,providedbythe"slot",theairgap.
Theslotwillalsoreducecapacitivecouplingtothecircuitboardfromthechipresistorelement(theFlipChip"FCStyle"chipresistor'selementfacestowardtheboardsurfaceinthesolderingofthisresistortothecircuitboard).
Thereshouldnotbeanycoppertraceinthelayoutdirectlyundertheresistor(theslothelpstopreventthisdesignerroraswell).
(SeeFig.
#1forcircuitboardlayoutsketch).
StyleFC–FlipChipVersionforsurfacemountapplications.
Thisversionhassolderablemetallizedterminationpadsononesideofthesubstrate,thesamesideastheresistiveelement.
ThebacksideofthesubstrateisbareceramicSolderattachmentnote:Therecommendedsoldersforflipchipsolderattachmentare62Sn/36Pb/2Ag,96.
5Sn/3.
5AgorstandardSn/Ag/Cusolderalloys.
CHIPRESISTORSOLDERPASTE(REFLOWED)FLIPCHIPSOLDEREDONCIRCUITBOARDCIRCUITBOARDCIRCUITBOARDCIRCUITBOARDTypicalslotwidthisaminimumof1.
5timesthechipresistorwidth.
Fig.
1Slotthroughcircuitboard
Thesehighresistanceprecisionchipresistorsaredesignedforuseinextremelylowsignaldetection/amplificationcircuits.
Thedesignercanchoosefromanumberofavailablestandardresistancevaluestooptimizethecircuitdesign.
ApplicationsincludePhotodiodesignalamplification,photomultipliers,ionizationdetection,etc.
Theseprecisionhighresistancechipresistorscanalsobeidealforuseastheinputresistorforhighimpedancevoltagedivisionandgainsetting.
OperatingTemperaturevs.
optimizedperformance:TheTypeCHRHighResistancePrecisionChiphasaverylowtemperaturecoefficientrelativetotheoperatingtemperature.
Forresistanceof10Megupto25Megthelow±25ppm/°Cappliesoverthetemperaturerangeof–40°Cto+85°C,referencedto+25°C.
Forresistancevaluesabove25Megthetemperaturecoefficientisdefinedintwotemperaturerangestohelpinoptimizingperformance.
AtemperatureCoefficientof±35ppm/°Cappliesfrom+10°Cto+40°C,referencedto+25°Cand±70ppm/°Cappliesoverthetemperaturerangeof–40°Cto+85°C,referencedto+25°C.
Formaximumstability,theproductshouldbeoperatedinanambienttemperaturebelow+85°C.
OperatingStability,TCperformancevs.
circuitboardlayout:TheTypeCHRHighResistancePrecisionChipResisorhasexcellentTemperatureCoefficientandstabilityspecifications.
Toachievethebestperformanceitisimportanttominimizethecontributionofcircuitboardissuesrelativetohighresistanceleakage.
TooptimizethelayoutforthischipresistorthecircuitboardshouldhaveaslotdesignedintheboarddirectlyundertheresistorelementtoprovideforenhancedcleaningunderReleaseDate:03/12/03,Rev.
A,Rev.
Date:03/12/03Page1of1CADKDOCCaddockElectronics,2003AcopyofthisApplicationNotecanbeobtainedatwww.
caddock.
comthishighresistancechip.
Additionally,theslotwillprovidehighinsulationresistance,providedbythe"slot",theairgap.
Theslotwillalsoreducecapacitivecouplingtothecircuitboardfromthechipresistorelement(theFlipChip"FCStyle"chipresistor'selementfacestowardtheboardsurfaceinthesolderingofthisresistortothecircuitboard).
Thereshouldnotbeanycoppertraceinthelayoutdirectlyundertheresistor(theslothelpstopreventthisdesignerroraswell).
(SeeFig.
#1forcircuitboardlayoutsketch).
StyleFC–FlipChipVersionforsurfacemountapplications.
Thisversionhassolderablemetallizedterminationpadsononesideofthesubstrate,thesamesideastheresistiveelement.
ThebacksideofthesubstrateisbareceramicSolderattachmentnote:Therecommendedsoldersforflipchipsolderattachmentare62Sn/36Pb/2Ag,96.
5Sn/3.
5AgorstandardSn/Ag/Cusolderalloys.
CHIPRESISTORSOLDERPASTE(REFLOWED)FLIPCHIPSOLDEREDONCIRCUITBOARDCIRCUITBOARDCIRCUITBOARDCIRCUITBOARDTypicalslotwidthisaminimumof1.
5timesthechipresistorwidth.
Fig.
1Slotthroughcircuitboard
- settinginfinidock相关文档
- inchinfinidock
- sequentiallyinfinidock
- Steelinfinidock
- optioninfinidock
- INSTRUCTIONSinfinidock
- Gardeninfinidock
vdsina：俄罗斯VPS(datapro)，6卢布/天，1G内存/1核(AMD EPYC 7742)/5gNVMe/10T流量
今天获得消息，vdsina上了AMD EPYC系列的VDS，性价比比较高，站长弄了一个，盲猜CPU是AMD EPYC 7B12（经过咨询，详细CPU型号是“EPYC 7742”）。vdsina，俄罗斯公司，2014年开始运作至今，在售卖多类型VPS和独立服务器，可供选择的有俄罗斯莫斯科datapro和荷兰Serverius数据中心。付款比较麻烦：信用卡、webmoney、比特币，不支持PayPal...
BuyVM($5/月),1Gbps不限流量流媒体VPS主机
BuyVM针对中国客户推出了China Special - STREAM RYZEN VPS主机，带Streaming Optimized IP，帮你解锁多平台流媒体，适用于对于海外流媒体有需求的客户，主机开设在拉斯维加斯机房，AMD Ryzen+NVMe磁盘，支持Linux或者Windows操作系统，IPv4+IPv6，1Gbps不限流量，最低月付5加元起，比美元更低一些，现在汇率1加元=0.7...
日本CN2、香港CTG（150元/月） E5 2650 16G内存 20M CN2带宽 1T硬盘
提速啦简单介绍下提速啦 是成立于2012年的IDC老兵 长期以来是很多入门级IDC用户的必选商家 便宜 稳定 廉价 是你创业分销的不二之选，目前市场上很多的商家都是从提速啦拿货然后去分销的。提速啦最新物理机活动 爆炸便宜的香港CN2物理服务器 和 日本CN2物理服务器香港CTG E5 2650 16G内存 20M CN2带宽 1T硬盘 150元/月日本CN2 E5 2650 16G内存 20M C...
infinidock为你推荐
-
金士顿4g内存条金士顿4g内存条价格是多少啊？软银赛富阿里巴巴的诚信通和赛富通有什么区别迈腾和帕萨特哪个好大众新帕萨特和迈腾哪个更好！迈腾和帕萨特哪个好迈腾和帕萨特哪个好手机浏览器哪个好手机浏览器哪个好？手机浏览器哪个好用？英语词典哪个好英语词典哪个好网页传奇哪个好玩近有什么好玩的网页传奇介绍么海克斯皮肤哪个好摄魂使者薇恩和海克斯安妮皮肤哪个好 怎么合成百度空间登录百度空间怎么登陆空间登录页面登录QQ空间时，如何使登陆界面不直接进入个人中心？