Quad-Channel, 14-Bit, 50-MSPS to 160-MSPS, ADC with a JESD204B Interface datasheet

90 Pages·2014·6.16 MB·English

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ADC34J42,ADC34J43,ADC34J44,ADC34J45
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ADC34J4x Quad-Channel, 14-Bit, 50-MSPS to 160-MSPS, Analog-to-Digital Converter
with a JESD204B Interface
1 Features 3 Description
• QuadChannel The ADC34J4x is a high-linearity, ultra-low power,
1 quad-channel, 14-bit, 50-MSPS to 160-MSPS,
• 14-BitResolution
analog-to-digital converter (ADC). The devices are
• Single1.8-VSupply designed specifically to support demanding, high
• FlexibleInputClockBufferwithDivide-by-1, -2, -4 input frequency signals with large dynamic range
requirements. A clock input divider allows more
• SNR=72dBFS,SFDR=86dBcat
flexibility for system clock architecture design while
f =70MHz
IN the SYSREF input enables complete system
• Ultra-LowPowerConsumption: synchronization. The ADC34J4x family supports
– 203mW/Chat160MSPS serial current-mode logic (CML) and JESD204B
interfaces in order to reduce the number of interface
• ChannelIsolation:105dB
lines, thus allowing high system integration density.
• InternalDither
The JESD204B interface is a serial interface, where
• JESD204BSerial Interface: the data of each ADC are serialized and output over
only one differential pair. An internal phase-locked
– SupportsSubclass0,1,2
loop (PLL) multiplies the incoming ADC sampling
– SupportsOneLaneperADCupto160MSPS
clock by 20 to derive the bit clock that is used to
• SupportforMulti-ChipSynchronization serialize the 14-bit data from each channel. The
• Pin-to-PinCompatiblewith12-BitVersion ADC34J4x devices support subclass 1 with interface
speedsupto3.2Gbps.
• Package:VQFN-48(7mm× 7mm)
DeviceInformation(1)
2 Applications
PARTNUMBER PACKAGE BODYSIZE(NOM)
• Multi-Carrier,Multi-ModeCellularBaseStations
ADC34J4x VQFN(48) 7.00mm×7.00mm
• RadarandSmartAntennaArrays
(1) For all available packages, see the orderable addendum at
• MunitionsGuidance theendofthedatasheet.
• MotorControlFeedback
FFTwithDitherOn
• NetworkandVectorAnalyzers (f =160MSPS,f =10MHz,SNR=72.5dBFS,
S IN
• CommunicationsTestEquipment SFDR=88dBc)
• NondestructiveTesting 0
• MicrowaveReceivers
±20
• SoftwareDefinedRadios(SDRs)
• QuadratureandDiversityRadioReceivers FS) ±40
B
d
e ( ±60
d
u
mplit ±80
A
±100
±120
0 16 32 48 64 80
Frequency (MHz) C001
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
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Table of Contents
1 Features.................................................................. 1 7.19 TypicalCharacteristics:CommonPlots................43
2 Applications........................................................... 1 7.20 TypicalCharacteristics:ContourPlots..................44
3 Description............................................................. 1 8 ParameterMeasurementInformation................46
4 RevisionHistory..................................................... 2 8.1 TimingDiagrams.....................................................46
5 DeviceComparisonTable..................................... 3 9 DetailedDescription............................................ 48
9.1 Overview.................................................................48
6 PinConfigurationandFunctions......................... 3
9.2 FunctionalBlockDiagram.......................................48
7 Specifications......................................................... 5
9.3 FeatureDescription.................................................49
7.1 AbsoluteMaximumRatings......................................5
9.4 DeviceFunctionalModes........................................56
7.2 HandlingRatings.......................................................5
9.5 Programming...........................................................57
7.3 RecommendedOperatingConditions.......................5
9.6 RegisterMap...........................................................61
7.4 SummaryofSpecialModeRegisters........................6
10 ApplicationandImplementation........................ 77
7.5 ThermalInformation..................................................6
10.1 ApplicationInformation..........................................77
7.6 ElectricalCharacteristics:ADC34J44,ADC34J45....7
10.2 TypicalApplications..............................................77
7.7 ElectricalCharacteristics:ADC34J42,ADC34J43...7
11 Power-SupplyRecommendations..................... 80
7.8 ElectricalCharacteristics:General............................8
7.9 ACPerformance:ADC34J45....................................9 12 Layout................................................................... 81
7.10 ACPerformance:ADC34J44................................11 12.1 LayoutGuidelines.................................................81
7.11 ACPerformance:ADC34J43................................13 12.2 LayoutExample....................................................81
7.12 ACPerformance:ADC34J42 ...............................15 13 DeviceandDocumentationSupport................. 82
7.13 DigitalCharacteristics...........................................17 13.1 RelatedLinks........................................................82
7.14 TimingCharacteristics...........................................18 13.2 Trademarks...........................................................82
7.15 TypicalCharacteristics:ADC34J45......................19 13.3 ElectrostaticDischargeCaution............................82
7.16 TypicalCharacteristics:ADC34J44......................25 13.4 Glossary................................................................82
7.17 TypicalCharacteristics:ADC34J43......................31 14 Mechanical,Packaging,andOrderable
7.18 TypicalCharacteristics:ADC34J42......................37 Information........................................................... 82
4 Revision History
NOTE:Pagenumbersforpreviousrevisionsmaydifferfrompagenumbersinthecurrentversion.
ChangesfromRevisionA(August2014)toRevisionB Page
• ChangeddocumentstatusfromMixedStatustoProductionData........................................................................................ 1
• ChangedADC43J2,ADC43J3,andADC43J4statustoProductionData............................................................................. 1
ChangesfromOriginal(May2014)toRevisionA Page
• ChangeddocumentstatusfromProductPreviewtoMixedStatus:ADC34J45releasingasProductionData..................... 1
• Madechangestoproductpreviewdatasheet........................................................................................................................ 1
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5 Device Comparison Table
RESOLUTION
INTERFACE (Bits) 25MSPS 50MSPS 80MSPS 125MSPS 160MSPS
12 ADC3421 ADC3422 ADC3423 ADC3424 —
SerialLVDS
14 ADC3441 ADC3442 ADC3443 ADC3444 —
12 — ADC34J22 ADC34J23 ADC34J24 ADC34J25
JESD204B
14 — ADC34J42 ADC34J43 ADC34J44 ADC34J45
6 Pin Configuration and Functions
RGZPackage
VQFN-48
(TopView)
~ ~
P M
D C C D
M P D M P N N M P D M P
A A V B B Y Y C C V D D
D D A D D S S D D A D D
48 47 46 45 44 43 42 41 40 39 38 37
OVRB 1 36 OVRC
OVRA 2 35 OVRD
DVDD 3 34 DVDD
AVDD 4 33 PDN
AVDD 5 32 AVDD
INAM 6 31 INDM
GND Pad
(Back Side)
INAP 7 30 INDP
AVDD 8 29 AVDD
AVDD 9 28 AVDD
INBP 10 27 INCP
INBM 11 26 INCM
AVDD 12 25 AVDD
13 14 15 16 17 18 19 20 21 22 23 24
K A N T D M P D T P M M
L T E U D K K D E F F C
SC DA S DO AV CL CL AV ES RE RE V
S S R S S
Y Y
S S
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PinFunctions
PIN
I/O DESCRIPTION
NAME NO.
4,5,8,9,12,17,
AVDD 20,25,28,29,32, I Analog1.8-Vpowersupply
39,46
CLKM 18 I NegativedifferentialclockinputfortheADC
CLKP 19 I PositivedifferentialclockinputfortheADC
DAM 48 O NegativeserialJESD204BoutputforchannelA
DAP 47 O PositiveserialJESD204BoutputforchannelA
DBM 45 O NegativeserialJESD204BoutputforchannelB
DBP 44 O PositiveserialJESD204BoutputforchannelB
DCM 41 O NegativeserialJESD204BoutputforchannelC
DCP 40 O PositiveserialJESD204BoutputforchannelC
DDM 38 O NegativeserialJESD204BoutputforchannelD
DDP 37 O PositiveserialJESD204BoutputforchannelD
DVDD 3,34 I Digital1.8-Vpowersupply
GND PowerPAD™ I Ground,0V
INAM 6 I NegativedifferentialanaloginputforchannelA
INAP 7 I PositivedifferentialanaloginputforchannelA
INBM 11 I NegativedifferentialanaloginputforchannelB
INBP 10 I PositivedifferentialanaloginputforchannelB
INCM 26 I NegativedifferentialanaloginputforchannelC
INCP 27 I PositivedifferentialanaloginputforchannelC
INDM 31 I NegativedifferentialanaloginputforchannelD
INDP 30 I PositivedifferentialanaloginputforchannelD
OVRA 2 O OverrangeindicatorforchannelA
OVRB 1 O OverrangeindicatorforchannelB
OVRC 36 O OverrangeindicatorforchannelC
OVRD 35 O OverrangeindicatorforchannelD
PDN 33 I Power-downcontrol.Thispinhasaninternal150-kΩpull-downresistor.
RESET 21 I Hardwarereset;activehigh.Thispinhasaninternal150-kΩ,pull-downresistor.
SCLK 13 I Serialinterfaceclockinput.Thispinhasaninternal150-kΩpull-downresistor.
SDATA 14 I Serialinterfacedatainput.Thispinhasaninternal150-kΩpull-downresistor.
SDOUT 16 O Serialinterfacedataoutput
Serialinterfaceenable.Activelow.
SEN 15 I
Thispinhasaninternal150-kΩpull-upresistortoAVDD.
SYNCM~ 42 I NegativeJESD204Bsynchinput
SYNCP~ 43 I PositiveJESD204Bsynchinput
SYSREFM 23 I NegativeexternalSYSREFinput
SYSREFP 22 I PositiveexternalSYSREFinput
VCM 24 O Common-modevoltageoutputfortheanaloginputs
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7 Specifications
7.1 Absolute Maximum Ratings
overoperatingfree-airtemperaturerange(unlessotherwisenoted) (1)
MIN MAX UNIT
Supplyvoltagerange,AVDD –0.3 2.1 V
Supplyvoltagerange,DVDD –0.3 2.1 V
Minimum
INAP,INBP,INCP,INDP,INAM,INBM,INCM,INDM –0.3 V
(AVDD+0.3,2.1)
Voltageappliedtoinput CLKP,CLKM(2) –0.3 (AVDMDin+im0u.3m,2.1) V
pins:
Minimum
SYSREFP,SYSREFM,SYNCP~,SYNCM~ –0.3 V
(AVDD+0.3,2.1)
SCLK,SEN,SDATA,RESET,PDN –0.3 3.6 V
Operatingfree-air,T –40 85 °C
A
Temperaturerange
Operatingjunction,T 125 °C
J
(1) StressesbeyondthoselistedunderAbsoluteMaximumRatingsmaycausepermanentdamagetothedevice.Thesearestressratings
only,whichdonotimplyfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderRecommended
OperatingConditions.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
(2) WhenAVDDisturnedoff,TIrecommendsswitchingofftheinputclock(orensuringthevoltageonCLKP,CLKMislessthan|0.3V|).
ThisconfigurationpreventstheESDprotectiondiodesattheclockinputpinsfromturningon.
7.2 Handling Ratings
MIN MAX UNIT
T Storagetemperaturerange –65 150 °C
stg
Humanbodymodel(HBM),perANSI/ESDA/JEDECJS-001,all
V(ESD) Electrostaticdischarge pins(1) 2 kV
(1) JEDECdocumentJEP155statesthat500-VHBMallowssafemanufacturingwithastandardESDcontrolprocess.
7.3 Recommended Operating Conditions(1)
overoperatingfree-airtemperaturerange(unlessotherwisenoted)
MIN NOM MAX UNIT
SUPPLIES
AVDD Analogsupplyvoltagerange 1.7 1.8 1.9 V
DVDD Digitalsupplyvoltagerange 1.7 1.8 1.9 V
ANALOGINPUT
Forinputfrequencies<450MHz 2 V
PP
V Differentialinputvoltage
ID
Forinputfrequencies<600MHz 1 V
PP
V Inputcommon-modevoltage VCM±0.025 V
IC
CLOCKINPUT
Inputclockfrequency Samplingclockfrequency 15 160(2) MSPS
Sinewave,ac-coupled 0.2 1.5 V
Inputclockamplitude(differential) LVPECL,ac-coupled 1.6 V
LVDS,ac-coupled 0.7 V
Inputclockdutycycle 35% 50% 65%
Inputclockcommon-modevoltage 0.95 V
DIGITALOUTPUTS
Maximumexternalloadcapacitance
C 3.3 pF
LOAD fromeachoutputpintoGND
R Single-endedloadresistance 50 Ω
LOAD
(1) Afterpower-up,toresetthedeviceforthefirsttime,onlyusetheRESETpin;seetheRegisterInitializationsection.
(2) Withtheclockdividerenabledbydefaultfordivide-by-1.Maximumsamplingclockfrequencyforthedivide-by-4optionis640MSPS.
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7.4 Summary of Special Mode Registers
Table1liststhelocation,value,andfunctionsofspecialmoderegistersinthedevice.
Table1.Special ModesSummary
MODE LOCATION VALUEANDFUNCTION
DISDITHCHA 01h[7:6],134h[5,3]
CreatesanoisefloorcleanerandimprovesSFDR;seethe
DISDITHCHB 01h[5:4],434h[5,3] InternalDitherAlgorithmsection.
Dithermode
DISDITHCHC 01h[3:2],534h[5,3] 0000=Ditherdisabled
1111=Ditherenabled
DISDITHCHD 01h[1:0],234h[5,3]
SPECIALMODE1CHA 06h[4:2]
UseforbetterHD3.
SPECIALMODE1CHB 07h[4:2] 000=Defaultafterreset
Specialmode1
SPECIALMODE1CHC 08h[4:2] 010=Useforfrequency<120MHz
111=Useforfrequency>120MHz
SPECIALMODE1CHD 09h[4:2]
SPECIALMODE2CHA 122h[1:0]
SPECIALMODE2CHB 422h[1:0] HelpsimproveHD2.
Specialmode2 00=Defaultafterreset
SPECIALMODE2CHC 522h[1:0] 11=ImprovesHD2
SPECIALMODE2CHD 222h[1:0]
7.5 Thermal Information
ADC34J4x
THERMALMETRIC(1) RGZ(VQFN) UNIT
48PINS
R Junction-to-ambientthermalresistance 25.7
θJA
R Junction-to-case(top)thermalresistance 18.9
θJC(top)
R Junction-to-boardthermalresistance 3.0
θJB
°C/W
ψ Junction-to-topcharacterizationparameter 0.2
JT
ψ Junction-to-boardcharacterizationparameter 3
JB
R Junction-to-case(bottom)thermalresistance 0.5
θJC(bot)
(1) Formoreinformationabouttraditionalandnewthermalmetrics,seetheICPackageThermalMetricsapplicationreport,SPRA953.
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7.6 Electrical Characteristics: ADC34J44, ADC34J45
TypicalvaluesareatT =25°C,fulltemperaturerangeisT =–40°CtoT =85°C,maximumsamplingrate,50%clock
A MIN MAX
dutycycle,AVDD=DVDD=1.8V,and–1-dBFSdifferentialinput,unlessotherwisenoted.
ADC34J44 ADC34J45
PARAMETER MIN TYP MAX MIN TYP MAX UNIT
ADCclockfrequency 125 160 MSPS
Resolution 14 14 Bits
1.8-Vanalogsupply(AVDD)current 318 354 490 mA
1.8-Vdigitalsupplycurrent 79 97 150 mA
Totalpowerdissipation 715 812 1010 mW
Globalpower-downdissipation 22 22 mW
Wake-uptimefromglobalpower-down 85 85 100 µs
Standbypower-downdissipation 177 185 mW
Wake-uptimefromstandbypower-down 35 35 300 µs
7.7 Electrical Characteristics: ADC34J42, ADC34J43
TypicalvaluesareatT =25°C,fulltemperaturerangeisT =–40°CtoT =85°C,maximumsamplingrate,50%clock
A MIN MAX
dutycycle,AVDD=DVDD=1.8V,and–1-dBFSdifferentialinput,unlessotherwisenoted.
ADC34J42 ADC34J43
PARAMETER MIN TYP MAX MIN TYP MAX UNIT
ADCclockfrequency 50 80 MSPS
Resolution 14 14 Bits
1.8-Vanalogsupplycurrent 233 269 mA
1.8-Vdigitalsupplycurrent 39 56 mA
Totalpowerdissipation 491 584 mW
Globalpower-downdissipation 22 22 mW
Wake-uptimefromglobalpower-down 85 85 µs
Standbypower-downdissipation 155 166 mW
Wake-uptimefromstandbypower-down 35 35 µs
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7.8 Electrical Characteristics: General
TypicalvaluesareatT =25°C,fulltemperaturerangeisT =–40°CtoT =85°C,maximumsamplingrate,50%clock
A MIN MAX
dutycycle,AVDD=DVDD=1.8V,and–1-dBFSdifferentialinput,unlessotherwisenoted.
PARAMETER TESTCONDITIONS MIN TYP MAX UNIT
ANALOGINPUT
Differentialinputfull-scale 2.0 V
PP
r Inputresistance Differentialatdc 6.5 kΩ
i
c Inputcapacitance Differentialatdc 5.2 pF
i
VCMcommon-modevoltage
V 0.95 V
OC(VCM) output
VCMoutputcurrentcapability 10 mA
Inputcommon-modecurrent Peranaloginputpin 1.5 µA/MSPS
50-Ωdifferentialsourcedriving50-Ω
Analoginputbandwidth(3dB) 450 MHz
terminationacrossINPandINM
DCACCURACY
E Offseterror –20 20 mV
O
Gainerrorasaresultofinternal
E –3 3 %FS
G(REF) referenceinaccuracyalone
E Gainerrorofchannelalone ±1 %FS
G(CHAN)
Temperaturecoefficientof
α –0.017 Δ%FS/C
(EGCHAN) E
G(CHAN)
CHANNEL-TO-CHANNELISOLATION
Nearchannel 105 dB
f =10MHz
IN
Farchannel 105 dB
Nearchannel 95 dB
f =100MHz
IN
Farchannel 105 dB
Nearchannel 94 dB
Crosstalk(1) f =200MHz
IN
Farchannel 105 dB
Nearchannel 93 dB
f =230MHz
IN
Farchannel 105 dB
Nearchannel 85 dB
f =300MHz
IN
Farchannel 105 dB
(1) Crosstalkismeasuredwitha–1-dBFSinputsignalontheaggressorchannelandnoinputonthevictimchannel.
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7.9 AC Performance: ADC34J45
TypicalvaluesareatT =25°C,fulltemperaturerangeisT =–40°CtoT =85°C,ADCsamplingrate=160MSPS,
A MIN MAX
50%clockdutycycle,AVDD=DVDD=1.8V,and–1-dBFSdifferentialinput,unlessotherwisenoted.
ADC34J45(f =160MSPS)
S
DITHERON DITHEROFF
PARAMETER TESTCONDITIONS MIN TYP MAX MIN TYP MAX UNIT
DYNAMICACCHARACTERISTICS
f =10MHz 72.4 72.7
IN
f =70MHz 70.4 71.6 72
IN
SNR Signal-to-noiseratio f =100MHz 70.9 71.3 dBFS
IN
f =170MHz 69.9 70.4
IN
f =230MHz 68.8 69.5
IN
f =10MHz –151.4 –151.7
IN
f =70MHz –149.5 –150.6 –151
IN
Noisespectraldensity
NSD f =100MHz –149.9 –150.3 dBFS/Hz
(averagedacrossNyquistzone) IN
f =170MHz –148.9 –149.4
IN
f =230MHz –147.8 –148.5
IN
f =10MHz 72.1 72.4
IN
f =70MHz 69.6 71.2 71.6
IN
SINAD Signal-to-noiseanddistortionratio f =100MHz 70.7 71.1 dBFS
IN
f =170MHz 69.5 70
IN
f =230MHz 68.4 69
IN
f =10MHz 11.8 11.8
IN
f =70MHz 11.3 11.7 11.7
IN
ENOB Effectivenumberofbits f =100MHz 11.6 11.6 Bits
IN
f =170MHz 11.3 11.3
IN
f =230MHz 11.1 11.1
IN
f =10MHz 88 86
IN
f =70MHz 81 86 85
IN
SFDR Spurious-freedynamicrange f =100MHz 86 86 dBc
IN
f =170MHz 83 83
IN
f =230MHz 80 80
IN
f =10MHz –91 –93
IN
f =70MHz 81 –94 –92
IN
HD2 Secondharmonicdistortion f =100MHz –93 –91 dBc
IN
f =170MHz –83 –83
IN
f =230MHz –80 –80
IN
f =10MHz –88 –86
IN
f =70MHz 81 –86 –85
IN
HD3 Thirdharmonicdistortion f =100MHz –86 –86 dBc
IN
f =170MHz –92 –87
IN
f =230MHz –85 –82
IN
f =10MHz 98 95
IN
f =70MHz 87 98 94
IN
Non Spurious-freedynamicrange
f =100MHz 96 93 dBc
HD2,HD3 (excludingHD2,HD3) IN
f =170MHz 92 91
IN
f =230MHz 92 90
IN
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AC Performance: ADC34J45 (continued)
TypicalvaluesareatT =25°C,fulltemperaturerangeisT =–40°CtoT =85°C,ADCsamplingrate=160MSPS,
A MIN MAX
50%clockdutycycle,AVDD=DVDD=1.8V,and–1-dBFSdifferentialinput,unlessotherwisenoted.
ADC34J45(f =160MSPS)
S
DITHERON DITHEROFF
PARAMETER TESTCONDITIONS MIN TYP MAX MIN TYP MAX UNIT
f =10MHz –84 –84
IN
f =70MHz 76.5 –86 –83
IN
THD Totalharmonicdistortion f =100MHz –84 –84 dBc
IN
f =170MHz –82 –80
IN
f =230MHz –78 –77
IN
f =45MHz,
IN1 93 93
Third-orderintermodulation fIN2=50MHz
IMD3 dBFS
distortion f =185MHz,
IN1 88 88
f =190MHz
IN2
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