and 16-Bit, 250-MSPS ADC

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ADS42JB49,ADS42JB69
ZHCSBC2F–OCTOBER2012–REVISEDDECEMBER2014
ADS42JBx9 双双通通道道、、14 和和 16 位位、、250MSPS 模模数数转转换换器器
1 特特性性 2 应应用用
• 双通道ADC • 通信和线缆基础设施
1
• 14和16位分辨率 • 多载波、多模蜂窝接收器
• 最大时钟速率：250MSPS • 雷达和智能天线阵列
• JESD204B 串口 • 宽带无线
– 与子类别0，1，2 兼容 • 测试和测量仪器
– 高达3.125Gbps • 软件定义的和多样性射频
– 支持两路和四路信道 • 微波和双通道I/O接收器
• 具有高阻抗输入的模拟输入缓冲器 • 集线器
• 灵活的输入时钟缓冲器： • 功率放大器线性化
1，2 和4分频
3 说说明明
• 差分满量程输入：2V 和2.5V
PP PP
（寄存器可编程） ADS42JB69和ADS42JB49 是高线性、双通道，16
• 封装：9mmx9mm超薄四方扁平无引线(VQFN)- 和14位，250MSPS，模数转换器(ADC)。这些器件
64 支持JESD204B 串口，数据速率高达
• 功率耗散：每通道850mW 3.125Gbps。经缓冲的模拟输入在大大降低采样保持
• 间隙抖动：85fsrms 毛刺脉冲能量的同时，在宽频率范围内提供统一的输入
• 内部抖动 阻抗，这使得它可以轻松地将模拟输入驱动至极高输入
• 通道隔离：100dB 频率。采样时钟分频器可实现更灵活的系统时钟架构
• 性能： 设计。此器件采用内部抖动算法以在宽输入频率范围
– 2VPP，-1dBFS时，f输入=170MHz 内提供出色的无杂散动态范围(SFDR)。
– 信噪比(SNR)：73.3dBFS
器器件件信信息息(1)
– 无杂散动态范围(SFRD)：对于二次谐波
(HD2)，三次谐波(HD3) 为93dBc 器器件件型型号号 封封装装 接接口口选选项项
– SFDR：对于非HD2，HD3为100dBc ADS42JB49 VQFN(64) 14位DDR或QDRLVDS
14位JESD204B
– 2.5V ，-1dBFS时，f =170MHz
PP 输入
16位DDR或QDRLVDS
– SNR：74.7dBFS ADS42JB69 VQFN(64)
16位JESD204B
– SFDR：对于HD2，HD3为89dBc
对于非HD2，HD3为95dBc (1) 要了解所有可用封装，请见数据表末尾的可订购产品附录。
空白
空白
简简化化电电路路原原理理图图
Device Digital OVRA FFTfor170MHzInputSignal
IINNAAMP, 14-A, D16C-Bit TesBGt lMoacionkdes JEDSiDg2ita0l4B DDDDAAAA1010PPMM,, 0 FFisn==215700MMsHpsz
-20 Ain=-1dBFS
CLKINP, Divide PLL
CLKINM by1, 2,4 x10, x20 SYNC~P, HD2=90dBc
SYNC~M HD3=89dBc
SSYYSSRREEFFMP, Delay -40 NonHD2,3=100dBc
IINNBBMP, 14-A, D16C-Bit TesDBGt ilMgoaicitonakdles JEDSiDg2ita0l4B DDODDBBBBV1100RPMMPB,, mplitude(dB) -60
VCM CoMmomdeon Device Configuration A -80
RESETSENSCLKSDATASDOUTPDNPDN_GBLMODECTRL1CTRL2STBY -100
-120
0 25 50 75 100 125
Frequency(MHz)
1
PRODUCTIONDATAinformationiscurrentasofpublicationdate.ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnotnecessarilyincludetestingofallparameters.
EnglishDataSheet:SLAS900
ADS42JB49,ADS42JB69
ZHCSBC2F–OCTOBER2012–REVISEDDECEMBER2014 www.ti.com.cn
目目录录
1 特特性性.......................................................................... 1 9 DetailedDescription............................................ 30
2 应应用用.......................................................................... 1 9.1 Overview.................................................................30
3 说说明明.......................................................................... 1 9.2 FunctionalBlockDiagram.......................................30
4 修修订订历历史史记记录录........................................................... 2 9.3 FeatureDescription.................................................30
9.4 DeviceFunctionalModes........................................32
5 DeviceComparisonTable..................................... 4
9.5 Programming...........................................................38
6 PinConfigurationandFunctions......................... 4
9.6 RegisterMaps.........................................................41
7 Specifications......................................................... 6
10 ApplicationandImplementation........................ 56
7.1 AbsoluteMaximumRatings......................................6
10.1 ApplicationInformation..........................................56
7.2 ESDRatings..............................................................6
10.2 TypicalApplication................................................56
7.3 RecommendedOperatingConditions.......................7
11 PowerSupplyRecommendations..................... 62
7.4 ThermalInformation..................................................7
12 Layout................................................................... 62
7.5 ElectricalCharacteristics:ADS42JB69(16-Bit)........8
7.6 ElectricalCharacteristics:ADS42JB49(14-Bit)........9 12.1 LayoutGuidelines.................................................62
7.7 ElectricalCharacteristics:General..........................10 12.2 LayoutExample....................................................64
7.8 DigitalCharacteristics.............................................11 13 器器件件和和文文档档支支持持..................................................... 65
7.9 TimingCharacteristics.............................................12 13.1 器件支持................................................................65
7.10 TypicalCharacteristics:ADS42JB69....................14 13.2 文档支持................................................................67
7.11 TypicalCharacteristics:ADS42JB49....................19 13.3 相关链接................................................................67
7.12 TypicalCharacteristics:Common.........................24 13.4 商标....................................................................... 67
7.13 TypicalCharacteristics:Contour...........................25 13.5 静电放电警告.........................................................67
8 ParameterMeasurementInformation................28 13.6 术语表................................................................... 67
14 机机械械封封装装和和可可订订购购信信息息.......................................... 67
4 修修订订历历史史记记录录
NOTE:Pagenumbersforpreviousrevisionsmaydifferfrompagenumbersinthecurrentversion.
ChangesfromRevisionE(August2013)toRevisionF Page
• 已将格式更改为符合最新的数据表标准................................................................................................................................... 1
• 已添加ESD额定值表和特性描述、器件功能模式、应用和实施、电源相关建议、布局、器件和文档支持以及机械、封
装和可订购信息部分............................................................................................................................................................... 1
• ChangedtitleofDeviceComparisonTable............................................................................................................................ 4
• ChangedtitleofPinFunctionstable....................................................................................................................................... 5
• DeletedOrderingInformationtable........................................................................................................................................ 6
• Correctednamesofregisters10h,11h,12h,and13hinTable13 ..................................................................................... 41
ChangesfromRevisionD(August2013)toRevisionE Page
• 已更改文档状态至生产数据.................................................................................................................................................... 1
ChangesfromRevisionC(July2013)toRevisionD Page
• 更新了首页方框图................................................................................................................................................................... 1
• Changed2-V Full-ScaleINLmaximumspecificationinADS42JB49ElectricalCharacteristicstable................................ 9
PP
ChangesfromRevisionB(July2013)toRevisionC Page
• 已添加特性部分中的内部抖动................................................................................................................................................ 1
• 已更改从“此器件提供出色的”改为“此器件采用内部抖动算法以提供”..................................................................................... 1
• Changed2-V Full-ScaleINLmaximumspecificationinADS42JB69ElectricalCharacteristicstable................................ 8
PP
• Deleted2.5-V Full-ScaleINLmaximumspecificationinADS42JB69ElectricalCharacteristicstable............................... 8
PP
2 版权©2012–2014,TexasInstrumentsIncorporated
ADS42JB49,ADS42JB69
www.ti.com.cn ZHCSBC2F–OCTOBER2012–REVISEDDECEMBER2014
• Changed2-V Full-ScaleINLmaximumspecificationinADS42JB49ElectricalCharacteristicstable................................ 9
PP
• Deleted2.5-V Full-ScaleINLmaximumspecificationinADS42JB49ElectricalCharacteristicstable............................... 9
PP
• ChangedE specificationsinGeneralElectricalCharacteristicstable........................................................................... 10
GREF
ChangesfromRevisionA(November2012)toRevisionB Page
• 已更改文档状态至混合状态.................................................................................................................................................... 1
Copyright©2012–2014,TexasInstrumentsIncorporated 3
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5 Device Comparison Table
14-BIT, 14-BIT, 16-BIT,
INTERFACEOPTION
160MSPS 250MSPS 250MSPS
DDRorQDRLVDS — ADS42LB49 ADS42LB69
JESD204B ADS42JB46 ADS42JB49 ADS42JB69
6 Pin Configuration and Functions
RGCPackage
VQFN-64
(TopView)
DRVDD DGND OVRB OVRA DRVDD DB1M DB1P DB0M DB0P OVDD DA0P DA0M DA1P DA1M DGND DRVDD
I
4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9
6 6 6 6 6 5 5 5 5 5 5 5 5 5 5 4
DGND 1 48 DGND
DRVDD 2 47 DRVDD
DGND 3 46 DGND
MODE 4 45 SDOUT
STBY 5 44 RESET
PDN_GBL 6 43 SCLK
DRVDD 7 42 SDATA
SYNC~M 8 Thermal Pad 41 SEN
SYNC~P 9 40 AVDD
CTRL2 10 39 CTRL1
AVDD 11 38 AVDD
AGND 12 37 AGND
INBP 13 36 INAP
INBM 14 35 INAM
AGND 15 34 AGND
AVDD 16 33 AVDD
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
V D D D M D D M P D D D P M D V
AVDD3 AVD AGN AGN VC AVD AGN CLKIN CLKIN AGN AVD AGN YSREF YSREF AVD AVDD3
S S
4 Copyright©2012–2014,TexasInstrumentsIncorporated
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PinFunctions: JESD204BOutput Interface
PIN
DESCRIPTION
NAME NO. I/O FUNCTION
12,15,19,20,
AGND 23,26,28,34, I Supply Analogground
37
11,16,18,22,
AVDD 27,31,33,38, I Supply 1.8-Vanalogpowersupply
40
AVDD3V 17,32 I Supply 3.3-Vanalogsupplyforanalogbuffer
CLKINM 24 I Clock DifferentialADCclockinput
CLKINP 25 I Clock DifferentialADCclockinput
CTRL1 39 I Control Power-downcontrolwithaninternal150-kΩpull-downresistor
CTRL2 10 I Control Power-downcontrolwithaninternal150-kΩpull-downresistor
DA0P/M 54,53 O Interface JESD204BserialdataoutputforchannelA,lane0
DA1P/M 52,51 O Interface JESD204BserialdataoutputforchannelA,lane1
DB0P/M 56,57 O Interface JESD204BserialdataoutputforchannelB,lane0
DB1P/M 58,59 O Interface JESD204BserialdataoutputforchannelB,lane1
1,3,46,48,
DGND I Supply Digitalground
50,63
2,7,47,49,
DRVDD I Supply Digital1.8-Vpowersupply
60,64
INAM 35 I Input DifferentialanaloginputforchannelA
INAP 36 I Input DifferentialanaloginputforchannelA
INBM 14 I Input DifferentialanaloginputforchannelB
INBP 13 I Input DifferentialanaloginputforchannelB
IOVDD 55 I Supply Digital1.8-VpowersupplyfortheJESD204Btransmitter
MODE 4 I Control ConnecttoGND
OVRA 61 O Interface OverrangeindicationchannelAinCMOSoutputformat.
OVRB 62 O Interface OverrangeindicationchannelBinCMOSoutputformat.
PDN_GBL 6 I Control Globalpowerdown.Activehighwithaninternal150-kΩpull-downresistor.
RESET 44 I Control Hardwarereset;activehigh.Thispinhasaninternal150-kΩpull-downresistor.
SCLK 43 I Control Serialinterfaceclockinput.Thispinhasaninternal150-kΩpull-downresistor.
SDATA 42 I Control Serialinterfacedatainput.Thispinhasaninternal150-kΩpull-downresistor.
SDOUT 45 O Control Serialinterfacedataoutput
SEN 41 I Control Serialinterfaceenable.Thispinhasaninternal150-kΩpull-upresistor.
STBY 5 I Control Standby.Activehighwithaninternal150-kΩpull-downresistor.
SYNC~P 9 I Interface SynchronizationinputforJESD204Bport
SYNC~M 8 I Interface SynchronizationinputforJESD204Bport
SYSREFM 30 I Clock ExternalSYSREFinput(subclass1)
SYSREFP 29 I Clock ExternalSYSREFinput(subclass1)
VCM 21 O Output 1.9-Vcommon-modeoutputvoltageforanaloginputs
Thermalpad — GND Ground Connecttogroundplane
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ZHCSBC2F–OCTOBER2012–REVISEDDECEMBER2014 www.ti.com.cn
7 Specifications
7.1 Absolute Maximum Ratings
overoperatingfree-airtemperaturerange(unlessotherwisenoted)(1)
MIN MAX UNIT
AVDD3V –0.3 3.6 V
AVDD –0.3 2.1 V
Supplyvoltage
DRVDD –0.3 2.1 V
IOVDD –0.3 2.1 V
VoltagebetweenAGNDandDGND –0.3 0.3 V
INAP,INBP,INAM,INBM –0.3 3 V
CLKINP,CLKINM –0.3 minimum(2.1,AVDD+0.3) V
SYNC~P,SYNC~M –0.3 minimum(2.1,AVDD+0.3) V
Voltageappliedtoinputpins
SYSREFP,SYSREFM –0.3 minimum(2.1,AVDD+0.3) V
SCLK,SEN,SDATA,RESET,PDN_GBL,
–0.3 3.9 V
CTRL1,CTRL2,STBY,MODE
Operatingfree-air,T –40 +85 °C
A
Temperature Operatingjunction,T +125 °C
J
Storage,T –65 +150 °C
stg
(1) StressesbeyondthoselistedunderAbsoluteMaximumRatingsmaycausepermanentdamagetothedevice.Thesearestressratings
only,whichdonotimplyfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderRecommended
OperatingConditions.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
7.2 ESD Ratings
VALUE UNIT
V Electrostaticdischarge Humanbodymodel(HBM),perANSI/ESDA/JEDECJS-001(1) ±2000 V
(ESD)
(1) JEDECdocumentJEP155statesthat500-VHBMallowssafemanufacturingwithastandardESDcontrolprocess.
6 Copyright©2012–2014,TexasInstrumentsIncorporated
ADS42JB49,ADS42JB69
www.ti.com.cn ZHCSBC2F–OCTOBER2012–REVISEDDECEMBER2014
7.3 Recommended Operating Conditions
overoperatingfree-airtemperaturerange(unlessotherwisenoted)(1)
MIN NOM MAX UNIT
SUPPLIES
AVDD Analogsupplyvoltage 1.7 1.8 1.9 V
AVDD3V Analogbuffersupplyvoltage 3.15 3.3 3.45 V
DRVDD Digitalsupplyvoltage 1.7 1.8 1.9 V
IOVDD Outputbuffersupplyvoltage 1.7 1.8 1.9 V
ANALOGINPUTS
Defaultafterreset 2 V
PP
V Differentialinputvoltagerange
ID Registerprogrammable(2) 2.5 V
PP
V Inputcommon-modevoltage VCM±0.025 V
ICR
Maximumanaloginputfrequencywith2.5-V inputamplitude 250 MHz
PP
Maximumanaloginputfrequencywith2-V inputamplitude 400 MHz
PP
CLOCKINPUT
10xmode 60 250 MSPS
Inputclocksamplerate
20xmode 40 156.25 MSPS
Sinewave,ac-coupled 0.3(3) 1.5 V
PP
Inputclockamplitudedifferential LVPECL,ac-coupled 1.6 VPP
(VCLKP–VCLKM) LVDS,ac-coupled 0.7 VPP
LVCMOS,single-ended,ac-coupled 1.5 V
Inputclockdutycycle 35% 50% 65%
DIGITALOUTPUTS
C MaximumexternalloadcapacitancefromeachoutputpintoDRGND 3.3 pF
LOAD
R Single-endedloadresistance +50 Ω
LOAD
T Operatingfree-airtemperature –40 +85 °C
A
(1) Afterpower-up,toresetthedeviceforthefirsttime,usetheRESETpinonly.RefertotheRegisterInitializationsection.
(2) Fordetails,refertotheDigitalGainsection.
(3) RefertothePerformancevsClockAmplitudecurves,Figure28andFigure29.
7.4 Thermal Information
ADS42JBx9
THERMALMETRIC(1) RGC(QFN) UNIT
64PINS
R Junction-to-ambientthermalresistance 22.9
θJA
R Junction-to-case(top)thermalresistance 7.1
θJC(top)
R Junction-to-boardthermalresistance 2.5
θJB
°C/W
ψ Junction-to-topcharacterizationparameter 0.1
JT
ψ Junction-to-boardcharacterizationparameter 2.5
JB
R Junction-to-case(bottom)thermalresistance 0.2
θJC(bot)
(1) Formoreinformationabouttraditionalandnewthermalmetrics,seetheICPackageThermalMetricsapplicationreport,SPRA953.
Copyright©2012–2014,TexasInstrumentsIncorporated 7
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7.5 Electrical Characteristics: ADS42JB69 (16-Bit)
TypicalvaluesareatT =+25°C,AVDD=1.8V,AVDD3V=3.3V,DRVDD=1.8V,IOVDD=1.8V,50%clockdutycycle,
A
–1-dBFSdifferentialanaloginput,andsamplingrate=250MSPS,unlessotherwisenoted.Minimumandmaximumvalues
areacrossthefulltemperaturerangeofT =–40°CtoT =+85°C,AVDD=1.8V,AVDD3V=3.3V,DRVDD=1.8V,
MIN MAX
andIOVDD=1.8V.
2-V FULL-SCALE 2.5-V FULL-SCALE
PP PP
PARAMETER TESTCONDITIONS UNIT
MIN TYP MAX MIN TYP MAX
f =10MHz 74 75.9 dBFS
IN
f =70MHz 73.8 75.6 dBFS
IN
SNR Signal-to-noiseratio
f =170MHz 70.8 73.3 74.7 dBFS
IN
f =230MHz 72.6 74 dBFS
IN
f =10MHz 73.9 75.7 dBFS
IN
f =70MHz 73.7 75.3 dBFS
IN
SINAD Signal-to-noiseanddistortionratio
f =170MHz 69.6 73.2 74.5 dBFS
IN
f =230MHz 72.2 73.1 dBFS
IN
f =10MHz 95 90 dBc
IN
Spurious-freedynamicrange f =70MHz 91 88 dBc
IN
SFDR (includingsecondandthird
harmonicdistortion) fIN=170MHz 81 93 89 dBc
f =230MHz 84 82 dBc
IN
f =10MHz 92 88 dBc
IN
f =70MHz 89 86 dBc
IN
THD Totalharmonicdistortion
f =170MHz 78 91 86 dBc
IN
f =230MHz 82 80 dBc
IN
f =10MHz 95 95 dBc
IN
f =70MHz 91 88 dBc
IN
HD2 2nd-orderharmonicdistortion
f =170MHz 81 93 94 dBc
IN
f =230MHz 84 82 dBc
IN
f =10MHz 95 90 dBc
IN
f =70MHz 96 93 dBc
IN
HD3 3rd-orderharmonicdistortion
f =170MHz 81 94 89 dBc
IN
f =230MHz 86 84 dBc
IN
f =10MHz 102 102 dBc
IN
Worstspur f =70MHz 103 103 dBc
IN
(otherthansecondandthird
harmonics) fIN=170MHz 87 100 95 dBc
f =230MHz 99 93 dBc
IN
f =46MHz,f =50MHz,
1 2 97 95 dBFS
Two-toneintermodulation eachtoneat–7dBFS
IMD
distortion f =185MHz,f =190MHz,
1 2 90 89 dBFS
eachtoneat–7dBFS
20-MHz,full-scalesignalon
channelunderobservation;
Crosstalk 100 100 dB
170-MHz,full-scalesignalon
otherchannel
Recoverytowithin1%(offull-
Clock
Inputoverloadrecovery scale)for6-dBoverloadwithsine- 1 1
cycle
waveinput
For50-mV signalonAVDD
PSRR ACpower-supplyrejectionratio PP >40 >40 dB
supply,upto10MHz
ENOB Effectivenumberofbits f =170MHz 11.9 12.1 LSBs
IN
DNL Differentialnonlinearity f =170MHz ±0.6 ±0.6 LSBs
IN
INL Integratednonlinearity f =170MHz ±3 ±8 ±3.5 LSBs
IN
8 Copyright©2012–2014,TexasInstrumentsIncorporated
ADS42JB49,ADS42JB69
www.ti.com.cn ZHCSBC2F–OCTOBER2012–REVISEDDECEMBER2014
7.6 Electrical Characteristics: ADS42JB49 (14-Bit)
TypicalvaluesareatT =+25°C,AVDD=1.8V,AVDD3V=3.3V,DRVDD=1.8V,IOVDD=1.8V,50%clockdutycycle,
A
–1-dBFSdifferentialanaloginput,andsamplingrate=250MSPS,unlessotherwisenoted.Minimumandmaximumvalues
areacrossthefulltemperaturerangeofT =–40°CtoT =+85°C,AVDD=1.8V,AVDD3V=3.3V,DRVDD=1.8V,
MIN MAX
andIOVDD=1.8V.
2-V FULL-SCALE 2.5-V FULL-SCALE
PP PP
PARAMETER TESTCONDITIONS UNIT
MIN TYP MAX MIN TYP MAX
f =10MHz 73.4 75 dBFS
IN
f =70MHz 73.2 74.7 dBFS
IN
SNR Signal-to-noiseratio
f =170MHz 69.5 72.7 74 dBFS
IN
f =230MHz 72.2 73.4 dBFS
IN
f =10MHz 73.3 74.8 dBFS
IN
f =70MHz 73.1 74.5 dBFS
IN
SINAD Signal-to-noiseanddistortionratio
f =170MHz 68.5 72.7 73.8 dBFS
IN
f =230MHz 71.8 72.6 dBFS
IN
f =10MHz 95 90 dBc
IN
Spurious-freedynamicrange f =70MHz 91 88 dBc
IN
SFDR (includingsecondandthird
harmonicdistortion) fIN=170MHz 79 93 89 dBc
f =230MHz 84 82 dBc
IN
f =10MHz 92 88 dBc
IN
f =70MHz 89 86 dBc
IN
THD Totalharmonicdistortion
f =170MHz 76 90 86 dBc
IN
f =230MHz 82 80 dBc
IN
f =10MHz 95 95 dBc
IN
f =70MHz 91 88 dBc
IN
HD2 2nd-orderharmonicdistortion
f =170MHz 79 93 94 dBc
IN
f =230MHz 84 82 dBc
IN
f =10MHz 95 90 dBc
IN
f =70MHz 96 93 dBc
IN
HD3 3rd-orderharmonicdistortion
f =170MHz 79 94 89 dBc
IN
f =230MHz 86 84 dBc
IN
f =10MHz 102 102 dBc
IN
Worstspur f =70MHz 103 103 dBc
IN
(otherthansecondandthird
harmonics) fIN=170MHz 87 101 95 dBc
f =230MHz 99 93 dBc
IN
f =46MHz,f =50MHz,
1 2 97 95 dBFS
Two-toneintermodulation eachtoneat–7dBFS
IMD
distortion f =185MHz,f =190MHz,
1 2 90 89 dBFS
eachtoneat–7dBFS
20-MHz,full-scalesignalon
channelunderobservation;
Crosstalk 100 100 dB
170-MHz,full-scalesignalon
otherchannel
Recoverytowithin1%(offull-
Clock
Inputoverloadrecovery scale)for6-dBoverloadwithsine- 1 1
cycle
waveinput
Fora50-mV signalonAVDD
PSRR ACpower-supplyrejectionratio PP >40 >40 dB
supply,upto10MHz
ENOB Effectivenumberofbits f =170MHz 11.8 12 LSBs
IN
DNL Differentialnonlinearity f =170MHz ±0.15 ±0.15 LSBs
IN
INL Integratednonlinearity f =170MHz ±0.75 ±3 ±0.9 LSBs
IN
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7.7 Electrical Characteristics: General
Typicalvaluesareat+25°C,AVDD=1.8V,AVDD3V=3.3V,DRVDD=1.8V,IOVDD=1.8V,50%clockdutycycle, –1-
dBFSdifferentialanaloginput,andsamplingrate=250MSPS,unlessotherwisenoted.Minimumandmaximumvaluesare
acrossthefulltemperaturerange:T =–40°CtoT =+85°C,AVDD=1.8V,AVDD3V=3.3V,DRVDD=1.8V,and
MIN MAX
IOVDD=1.8V.
PARAMETER TESTCONDITIONS MIN TYP MAX UNIT
ANALOGINPUTS
Differentialinputvoltage Default(afterreset) 2 VPP
VID range Registerprogrammed(1) 2.5 VPP
Differentialinputresistance(at170MHz) 1.2 kΩ
Differentialinputcapacitance(at170MHz) 4 pF
With50-Ωsourceimpedance,and50-Ω
Analoginputbandwidth 900 MHz
termination
VCM Common-modeoutputvoltage 1.9 V
VCMoutputcurrentcapability 10 mA
DCACCURACY
Offseterror –20 20 mV
Gainerrorasaresultof
EGREF internalreferenceinaccuracy ±2 %FS
alone
EGCHAN Gainerrorofchannelalone –5 %FS
Temperaturecoefficientof
0.01 Δ%/°C
EGCHAN
POWERSUPPLY
IAVDD Analogsupplycurrent 128 160 mA
IAVDD3V Analogbuffersupplycurrent 290 330 mA
IDRVDD Digitalsupplycurrent 228 252 mA
50-ΩexternalterminationfrompintoIOVDD,
IOVDD Outputbuffersupplycurrent 60 100 mA
fIN=2.5MHz
Analogpower 231 mW
Analogbufferpower 957 mW
Digitalpower 410 mW
Powerconsumptionbyoutput 50-ΩexternalterminationfrompintoIOVDD,
109 mW
buffer fIN=2.5MHz
Totalpower 1.7 1.96 W
Globalpower-down 160 mW
(1) RefertotheSerialInterfacesection.
10 Copyright©2012–2014,TexasInstrumentsIncorporated