Analog-to-Digital Converter (ADC)

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AMC7836
SLAS986D–NOVEMBER2014–REVISEDFEBRUARY2018
AMC7836 High-Density, 12-Bit Analog Monitor and Control Solution With Multichannel
ADC, Bipolar DACs, Temperature Sensor, and GPIO Ports
1 Features 3 Description
• 16Monotonic12-BitDACs The AMC7836 is a highly-integrated, low-power,
1 analog monitoring and control solution. The device
– SelectableRanges:–10Vto0V,–5Vto0V,
includes a 21-channel, 12-bit analog-to-digital
0Vto5V,and0Vto10V
converter (ADC), sixteen 12-bit digital-to-analog
– HighCurrentDriveCapability:upto ±15mA converters (DACs) with programmable output ranges,
eight GPIOs, an internal reference, and a local
– Auto-RangeDetector
temperature-sensor channel. The high level of
– SelectableClampVoltage
integrationsignificantlyreducescomponentcount and
• 12-BitSARADC simplifies closed-loop system designs making it ideal
– 21ExternalAnalogInputs for multichannel applications where board space,
size, andlow-powerarecritical.
– 16BipolarInputs: –12.5Vto+12.5V
The low-power, very high-integration and wide
– 5High-PrecisionInputs:0Vto5V
operating-temperature range of the device make it
– ProgrammableOut-of-RangeAlarms
suitable as an all-in-one, low-cost, bias-control circuit
• Internal2.5-VReference for the power amplifiers (PA) found in multichannel
• InternalTemperatureSensor RF communication systems. The flexible DAC output
ranges allow the device to be used as a biasing
– –40°Cto+125°COperation
solution for a large variety of transistor technologies,
– ±2.5°CAccuracy such as LDMOS, GaAs, and GaN. The AMC7836
• EightGeneral-PurposeI/OPorts(GPIOs) feature set is similarly beneficial in general-purpose
monitorandcontrolsystems.
• Low-PowerSPI-CompatibleSerial Interface
– 4-WireMode,1.8-Vto5.5-VOperation For applications that require a different channel-
count, additional features, or converter resolutions,
• OperatingTemperature: –40°Cto+125°C
Texas Instruments offers a complete family of analog
• Availablein64-PinHTQFP PowerPAD™IC monitor and control (AMC) products. For more
Package information,gotowww.ti.com/amc.
2 Applications DeviceInformation(1)
• CommunicationsInfrastructure: PARTNUMBER PACKAGE BODYSIZE(NOM)
– CellularBaseStations AMC7836 HTQFP(64) 10.00mm×10.00mm
– MicrowaveBackhaul (1) For all available packages, see the orderable addendum at
theendofthedatasheet.
– OpticalNetworks
• General-PurposeMonitorandControl AMC7836
• DataAcquisitionSystems 16 Bipolar Analog Inputs 2.5-V Reference
X
5 Unipolar Analog Inputs TemSepnesraotrure MU ADC DAC-0 16 Bipolar Analog Outputs
DAC-15
PI PI
S S
GPIO Control
8 GPIOs
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
AMC7836
SLAS986D–NOVEMBER2014–REVISEDFEBRUARY2018 www.ti.com
Table of Contents
1 Features.................................................................. 1 7.3 FeatureDescription.................................................26
2 Applications........................................................... 1 7.4 DeviceFunctionalModes........................................40
3 Description............................................................. 1 7.5 Programming...........................................................43
7.6 RegisterMaps.........................................................45
4 RevisionHistory..................................................... 2
8 ApplicationandImplementation........................ 72
5 PinConfigurationandFunctions......................... 4
8.1 ApplicationInformation............................................72
6 Specifications......................................................... 7
8.2 TypicalApplication .................................................75
6.1 AbsoluteMaximumRatings......................................7
9 PowerSupplyRecommendations...................... 78
6.2 ESDRatings..............................................................7
9.1 DeviceResetOptions.............................................79
6.3 RecommendedOperatingConditions.......................8
10 Layout................................................................... 79
6.4 ThermalInformation..................................................8
6.5 ElectricalCharacteristics:DAC ................................9 10.1 LayoutGuidelines.................................................79
6.6 ElectricalCharacteristics:ADCandTemperature 10.2 LayoutExample....................................................80
Sensor......................................................................11 11 DeviceandDocumentationSupport................. 81
6.7 ElectricalCharacteristics:General..........................12 11.1 DocumentationSupport........................................81
6.8 TimingRequirements..............................................13 11.2 ReceivingNotificationofDocumentationUpdates81
6.9 TypicalCharacteristics:DAC..................................15 11.3 CommunityResources..........................................81
6.10 TypicalCharacteristics:ADC................................21 11.4 Trademarks...........................................................81
6.11 TypicalCharacteristics:Reference.......................23 11.5 ElectrostaticDischargeCaution............................81
6.12 TypicalCharacteristics:TemperatureSensor.......23 11.6 Glossary................................................................81
7 DetailedDescription............................................ 24 12 Mechanical,Packaging,andOrderable
7.1 Overview.................................................................24 Information........................................................... 81
7.2 FunctionalBlockDiagram.......................................25
4 Revision History
NOTE:Pagenumbersforpreviousrevisionsmaydifferfrompagenumbersinthecurrentversion.
ChangesfromRevisionC(April2016)toRevisionD Page
• Changed4.5Vto4.7VinAV descriptioninPinFunctions .............................................................................................. 5
DD
• Changed4.5Vto4.7VinDV descriptioninPinFunctions .............................................................................................. 6
DD
• ChangedSupplyvoltage,AV MINvaluefrom4.5Vto4.7V ............................................................................................ 8
DD
• ChangedSupplyvoltage,DV MINvaluefrom4.5Vto4.7V ............................................................................................ 8
DD
• ChangedSupplyvoltage,AV MINvaluefrom4.5Vto4.7V ............................................................................................ 8
CC
• ChangedAV =DV =4.5to5.5VtoAV =DV =4.7to5.5VinElectricalCharacteristics:DACconditions............9
DD DD DD DD
• ChangedAV =DV =4.5to5.5VtoAV =DV =4.7to5.5VinElectricalCharacteristics:ADCand
DD DD DD DD
TemperatureSensorconditions .......................................................................................................................................... 11
• ChangedAV =DV =4.5to5.5VtoAV =DV =4.7to5.5VinElectricalCharacteristics:Generalconditions....12
DD DD DD DD
• ChangedAV =DV =4.5to5.5VtoAV =DV =4.7to5.5VinTimingRequirementsconditions ........................ 13
DD DD DD DD
• Changedoperatingoutputrangetoauto-rangedetectoroutputrangeinfirstsentenceinDACClearOperationsection..29
• AddedparagraphandFigure59toInternalReferencesection........................................................................................... 38
• Changed4.5Vto4.7VinAll-NegativeDACRangeModesection .................................................................................... 41
• AddedparagraphtoPowerSupplyRecommendationssection .......................................................................................... 78
• AddedparagraphtoPowerSupplyRecommendationssection .......................................................................................... 79
ChangesfromRevisionB(February2015)toRevisionC Page
• ChangedFigure117;correctedpins63and64................................................................................................................... 75
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ChangesfromRevisionA(November2014)toRevisionB Page
• ChangeddevicestatusfromProductPreviewtoProductionData ....................................................................................... 1
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5 Pin Configuration and Functions
PAPPackage
64-PinHTQFPWithExposedThermalPad
TopView
DGND DVDD DAC_D15 DAC_D14 AVSSD DAC_D13 DAC_D12 AVCC_CD AGND3 DAC_C11 DAC_C10 AVSSC DAC_C9 DAC_C8 AVDD REF_CMP
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
IOVDD_ 1 48 AGND2
RESET 2 47 ADC_0
SDO 3 46 ADC_1
SDI 4 45 ADC_2
SCLK 5 44 ADC_3
CS 6 43 ADC_4
GPIO0/ALARMIN 7 42 ADC_5
GPIO0/ALARMOUT 8 41 ADC_6
GPIO2/ADCTRIG 9 40 ADC_7
GPIO3/DAV 10 39 LV_ADC16
GPIO4 11 38 LV_ADC17
GPIO5 12 37 LV_ADC18
GPIO6 13 36 LV_ADC19
GPIO7 14 35 LV_ADC20
DAC_A0 15 34 ADC_8
DAC_A1 16 33 ADC_9
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
E 2 3 B 1 4 5 B 6 7 5 4 3 2 1 0
AVE DAC_A DAC_A VCC_A AGND DAC_B DAC_B AVSS DAC_B DAC_B ADC_1 ADC_1 ADC_1 ADC_1 ADC_1 ADC_1
A
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PinFunctions
PIN
DESCRIPTION
NAME NO. I/O
ADC_0 47 I
ADC_1 46 I Bipolaranaloginputs.ThesepinsaretypicallyusedtomonitortheDACgroup-Coutputs.The
ADC_2 45 I inputrangeofthesechannelsis–12.5to12.5V.
ADC_3 44 I
ADC_4 43 I
ADC_5 42 I Bipolaranaloginputs.ThesepinsaretypicallyusedtomonitortheDACgroup-Doutputs.The
ADC_6 41 I inputrangeofthesechannelsis–12.5to12.5V.
ADC_7 40 I
ADC_8 34 I
ADC_9 33 I Bipolaranaloginputs.ThesepinsaretypicallyusedtomonitortheDACgroup-Boutputs.The
ADC_10 32 I inputrangeofthesechannelsis–12.5to12.5V.
ADC_11 31 I
ADC_12 30 I
ADC_13 29 I Bipolaranaloginputs.ThesepinsaretypicallyusedtomonitortheDACgroup-Aoutputs.The
ADC_14 28 I inputrangeofthesechannelsis–12.5to12.5V.
ADC_15 27 I
AGND1 21 I Analogground.Thesepinsarethegroundreferencepointforallanalogcircuitryonthedevice.
ConnecttheAGND1,AGND2,andAGND3pinstothesamepotential(AGND).Ideally,the
AGND2 48 I
analoganddigitalgroundsshouldbeatthesamepotential(GND)andmustnotdifferbymore
AGND3 56 I than±0.3V.
PositiveanalogpowerforDACgroupsAandB.TheAV andAV pinsmustbe
AV 20 I CC_AB CC_CD
CC_AB connectedtothesamepotential(AV ).
CC
PositiveanalogpowerforDACgroupsCandD.TheAV andAV pinsmustbe
AV 57 I CC_AB CC_CD
CC_CD connectedtothesamepotential(AV ).
CC
AV 50 I Analogsupplyvoltage(4.7Vto5.5V).ThispinmusthavethesamevalueastheDV pin.
DD DD
Lowestpotentialinthesystem.Thispinistypicallytiedtoanegativesupplyvoltagebutifall
DACsaresetinapositiveoutputrange,thispincanbeconnectedtotheanalogground.This
AV 17 I
EE pinalsoactsasthenegativeanalogsupplyforDACgroupA.Thispinsetsthepower-on-reset
andclampvoltagevaluesfortheDACgroupA.
NegativeanalogsupplyforDACgroupB.Thispinsetsthepower-on-resetandclampvoltage
AV 24 I valuesfortheDACgroupB.ThispinistypicallytiedtotheAV pinforthenegativeoutput
SSB EE
rangesorAGNDforthepositiveoutputranges.
NegativeanalogsupplyforDACgroupC.Thispinsetsthepower-on-resetandclampvoltage
AV 53 I valuesfortheDACgroupC.ThispinistypicallytiedtotheAV pinforthenegativeoutput
SSC EE
rangesorAGNDforthepositiveoutputranges.
NegativeanalogsupplyforDACgroupD.Thispinsetsthepower-on-resetandclampvoltage
AV 60 I valuesfortheDACgroupD.ThispinistypicallytiedtotheAV pinforthenegativeoutput
SSD EE
rangesorAGNDforthepositiveoutputranges.
Active-lowserial-dataenable.Thisinputistheframe-synchronizationsignalfortheserialdata.
CS 6 I
Whenthissignalgoeslow,itenablestheserialinterfaceinputshiftregister.
DAC_A0 15 O
DAC_A1 16 O DACgroupA.TheseDACchannelssharethesamerangeandclampvoltage.Ifanyofthe
otherDACgroupsisinanegativevoltagerange,DACgroupAshouldbeinanegative
DAC_A2 18 O voltagerangeaswell.
DAC_A3 19 O
DAC_B4 22 O
DAC_B5 23 O
DACgroupB.TheseDACchannelssharethesamerangeandclampvoltage.
DAC_B6 25 O
DAC_B7 26 O
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PinFunctions (continued)
PIN
DESCRIPTION
NAME NO. I/O
DAC_C8 51 O
DAC_C9 52 O
DACgroupC.TheseDACchannelssharethesamerangeandclampvoltage.
DAC_C10 54 O
DAC_C11 55 O
DAC_D12 58 O
DAC_D13 59 O
DACgroupD.TheseDACchannelssharethesamerangeandclampvoltage.
DAC_D14 61 O
DAC_D15 62 O
Digitalground.Thispinisthegroundreferencepointforalldigitalcircuitryonthedevice.
DGND 64 I Ideally,theanaloganddigitalgroundsshouldbeatthesamepotential(GND)andmustnot
differbymorethan±0.3V.
DV 63 I Digitalsupplyvoltage(4.7Vto5.5V).ThispinmusthavethesamevalueastheAV pin.
DD DD
General-purposedigitalI/O0(default).Thispinisabidirectionaldigitalinput/output(I/O)with
aninternal48-kΩpullupresistortotheIOV pin.Alternativelythepincanbesettooperate
GPIO0/ALARMIN 7 I/O DD
asthedigitalinputALARMINwhichisanactive-lowalarm-controlsignal.Ifunusedthispincan
beleftfloating.
GeneralpurposedigitalI/O1(default).ThispinisabidirectionaldigitalI/Owithaninternal48-
kΩpullupresistortotheIOV pin.AlternativelythepincanbesettooperateasALARMOUT
GPIO0/ALARMOUT 8 I/O DD
whichisanopendrainglobalalarmoutput.Thispingoeslow(active)whenanalarmeventis
detected.Ifunusedthispincanbeleftfloating.
GeneralpurposedigitalI/O2(default).ThispinisabidirectionaldigitalI/Owithinternal48-kΩ
pullupresistortotheIOV pin.AlternativelythepincanbesettooperateasADCTRIGwhich
GPIO2/ADCTRIG 9 I/O DD
isanactive-lowexternalconversiontrigger.Thefallingedgeofthispinbeginsthesampling
andconversionoftheADC.Ifunusedthispincanbeleftfloating.
GeneralpurposedigitalI/O3(default).ThispinisabidirectionaldigitalI/Owithinternal48-kΩ
pullupresistortotheIOV pin.AlternativelythepincanbesettooperateasDAVwhichisan
DD
active-lowdata-availableindicatoroutput.Indirectmode,theDAVpingoeslow(active)when
GPIO3/DAV 10 I/O
theconversionends.Inautomode,a1-µspulse(activelow)appearsonthispinwhena
conversioncyclefinishes.TheDAVpinremainshighwhendeactivated.Ifunusedthispincan
beleftfloating.
GPIO4 11 I/O
GPIO5 12 I/O GeneralpurposedigitalI/O.ThesepinsarebidirectionaldigitalI/Oswithaninternal48-kΩ
GPIO6 13 I/O pullupresistortotheIOVDDpin.Ifunusedthesepinscanbeleftfloating.
GPIO7 14 I/O
I/Osupplyvoltage(1.8Vto5.5V).ThispinsetstheI/Ooperatingvoltageandthresholdlevels.
IOV 1 I
DD ThevoltageonthispinmustnotbegreaterthanthevalueoftheDV pin.
DD
LV_ADC16 39 I
LV_ADC17 38 I
Generalpurposeanaloginputs.Thesechannelsareusedforgeneralmonitoring.Theinput
LV_ADC18 37 I
rangeofthesepinsis0to2×V .
ref
LV_ADC19 36 I
LV_ADC20 35 I
Internal-referencecompensation-capacitorconnection.Connecta4.7-μFcapacitorbetween
REF_CMP 49 O
thispinandtheAGND2pin.
RESET 2 I Active-lowresetinput.Logiclowonthispincausesthedevicetoperformahardwarereset.
SCLK 5 I Serialinterfaceclock.
Serial-interfacedatainput.Dataisclockedintotheinputshiftregisteroneachrisingedgeof
SDI 4 I
theSCLKpin.
Serial-interfacedataoutput.TheSDOpinisinhighimpedancewhentheCSpinishigh.Data
SDO 3 O
isclockedoutoftheinputshiftregisteroneachfallingedgeoftheSCLKpin.
Thethermalpadislocatedonthebottom-sideofthedevicepackage.Thethermalpadshould
ThermalPad — I
betiedtothesamepotentialastheAV pinorleftdisconnected.
EE
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6 Specifications
6.1 Absolute Maximum Ratings
overoperatingfree-airtemperaturerange(unlessotherwisenoted) (1)
MIN MAX UNIT
AV toGND –0.3 6
DD
DV toGND –0.3 6
DD
IOV toGND –0.3 6
DD
AV toGND –0.3 18
CC
SupplyVoltage AV toGND –13 0.3 V
EE
AV ,AV ,AV toAV –0.3 13
SSB SSC SSD EE
AV toAV ,AV ,orAV –0.3 26
CC SSB SSC SSD
AV toAV –0.3 26
CC EE
DGNDtoAGND –0.3 0.3
ADC_[0-15]analoginputvoltagetoGND –13 13
LV_ADC[16-20]analoginputvoltagetoGND –0.3 AV +0.3
DD
DAC_A[0-3]outputstoGND AV –0.3 AV +0.3
EE CC
DAC_B[4-7]outputstoGND AV –0.3 AV +0.3
SSB CC
DAC_C[8-11]outputstoGND AV –0.3 AV +0.3
SSC CC
PinVoltage V
DAC_D[12-15]outputstoGND AV –0.3 AV +0.3
SSD CC
REF_CMPtoGND –0.3 AV +0.3
DD
CS,SCLK,SDIandRESETtoGND –0.3 IOV +0.3
DD
SDOtoGND –0.3 IOV +0.3
DD
GPIO[0-7]toGND –0.3 IOV +0.3
DD
ADC_[0:15]analoginputcurrent –10 10
PinCurrent LV_ADC[16:20]analoginputcurrent –10 10 mA
GPIO[0:7]sinkingcurrent 5
Operatingtemperature –40 125 °C
Junctiontemperature,T max –40 150 °C
J
Storagetemperature,T –40 150 °C
stg
(1) StressesbeyondthoselistedunderAbsoluteMaximumRatingsmaycausepermanentdamagetothedevice.Thesearestressratings
only,whichdonotimplyfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderRecommended
OperatingConditions.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
6.2 ESD Ratings
VALUE UNIT
Humanbodymodel(HBM),perANSI/ESDA/JEDECJS-001(1) ±1000
V(ESD) Electrostaticdischarge Chargeddevicemodel(CDM),perJEDECspecificationJESD22- V
C101(2) ±250
(1) JEDECdocumentJEP155statesthat500VHBMallowssafemanufacturingwithastandardESDcontrolprocess.
(2) JEDECdocumentJEP157statesthat250VCDMallowssafemanufacturingwithastandardESDcontrolprocess.
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6.3 Recommended Operating Conditions
overoperatingfree-airtemperaturerange(unlessotherwisenoted)
MIN NOM MAX UNIT
AV 4.7 5 5.5
DD
DV (1) 4.7 5 5.5
DD
IOV (2) 1.8 5.5
DD
Supplyvoltage V
AV 4.7 12 12.5
CC
AV –12.5 –12 0
EE
AV ,AV ,AV AV 0
SSB SSC SSD EE
Specifiedoperatingtemperature –40 25 105 °C
Operatingtemperature –40 25 125 °C
(1) ThevalueoftheDV pinmustbeequaltothatoftheAV pin.
DD DD
(2) ThevalueoftheIOV pinmustbelessthanorequaltothatoftheDV pin.
DD DD
6.4 Thermal Information
AMC7836
THERMALMETRIC(1) PAP(HTQFP) UNIT
64PINS
R Junction-to-ambientthermalresistance 26.2 °C/W
θJA
R Junction-to-case(top)thermalresistance 7.2 °C/W
θJC(top)
R Junction-to-boardthermalresistance 9.1 °C/W
θJB
ψ Junction-to-topcharacterizationparameter 0.2 °C/W
JT
ψ Junction-to-boardcharacterizationparameter 9 °C/W
JB
R Junction-to-case(bottom)thermalresistance 0.2 °C/W
θJC(bot)
(1) Formoreinformationabouttraditionalandnewthermalmetrics,seetheSemiconductorandICPackageThermalMetricsapplication
report.
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6.5 Electrical Characteristics: DAC
Theelectricalratingsspecifiedinthissectionapplytoallspecificationsinthisdocument,unlessotherwisenoted.These
specificationsareinterpretedasconditionsthatdonotdegradethedeviceparametricorfunctionalspecificationsforthelifeof
theproductcontainingit.AV =DV =4.7to5.5V,AV =12V,IOV =1.8to5.5V,AGND=DGND=0V,AV =
DD DD CC DD EE
AV =AV =AV =–12V(forDACgroupsinnegativerange)or0V(forDACgroupsinpositiveranges),DACoutput
SSB SSC SSD
range=0to10Vforallgroups,noloadontheDACs,T =–40°Cto105°C
A
PARAMETER TESTCONDITIONS MIN TYP MAX UNIT
DACDCACCURACY
Resolution 12 Bits
Measuredbylinepassingthroughcodes020hand ±0.3 ±1
FFFh.0to10Vand–10to0Vranges
INL Relativeaccuracy LSB
Measuredbylinepassingthroughcodes040hand ±0.5 ±1.5
FFFh.0to5Vand–5to0Vranges
Specifiedmonotonic.Measuredbylinepassing ±0.03 ±1
throughcodes020handFFFh.0to10Vand–10to
0Vranges
DNL Differentialnonlinearity LSB
Specifiedmonotonic.Measuredbylinepassing ±0.06 ±1
throughcodes020handFFFh.0to5Vand–5to0
Vranges
TA=25°C,0to10Vrange ±2.5 ±20
TUE Totalunadjustederror(1) TA=25°C,–10to0Vrange ±2.5 ±20 mV
TA=25°C,0to5Vrange ±1.5 ±15
TA=25°C,–5to0Vrange ±1.5 ±15
TA=25°C,Measuredbylinepassingthroughcodes ±0.25 ±5
020handFFFh.0to10Vrange
Offseterror mV
TA=25°C,Measuredbylinepassingthroughcodes ±0.25 ±5
040handFFFh.0to5Vrange
TA=25°C,Code000h,–10to0Vrange ±1 ±25
Zero-codeerror mV
TA=25°C,Code000h,–5to0Vrange ±1 ±25
TA=25°C,Measuredbylinepassingthroughcodes ±0.01 ±0.2
020handFFFh,0to10Vrange
TA=25°C,Measuredbylinepassingthroughcodes ±0.01 ±0.2
020handFFFh,–10to0Vrange
Gainerror(1) %FSR
TA=25°C,Measuredbylinepassingthroughcodes ±0.01 ±0.2
040handFFFh,0to5Vrange
TA=25°C,Measuredbylinepassingthroughcodes ±0.01 ±0.2
040handFFFh,–5to0Vrange
0to10Vrange ±1
Offsettemperaturecoefficient ppm/°C
0to5Vrange ±1
–10to0Vrange ±2
Zero-codetemperaturecoefficient ppm/°C
–5to0Vrange ±2
0to10Vrange ±2.5
–10to0Vrange ±2.5
Gaintemperaturecoefficient(1) ppm/°C
0to5Vrange ±2.5
–5to0Vrange ±2.5
(1) Theinternalreferencecontributionnotincluded.
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Electrical Characteristics: DAC (continued)
Theelectricalratingsspecifiedinthissectionapplytoallspecificationsinthisdocument,unlessotherwisenoted.These
specificationsareinterpretedasconditionsthatdonotdegradethedeviceparametricorfunctionalspecificationsforthelifeof
theproductcontainingit.AV =DV =4.7to5.5V,AV =12V,IOV =1.8to5.5V,AGND=DGND=0V,AV =
DD DD CC DD EE
AV =AV =AV =–12V(forDACgroupsinnegativerange)or0V(forDACgroupsinpositiveranges),DACoutput
SSB SSC SSD
range=0to10Vforallgroups,noloadontheDACs,T =–40°Cto105°C
A
PARAMETER TESTCONDITIONS MIN TYP MAX UNIT
DACOUTPUTCHARACTERISTICS
Setatpower-uporresetthroughauto-range –10 0
detection.Theoutputrangecanbemodifiedafter
power-uporresetthroughtheDACrangeregisters
(address0x1Ethrough0x1F).DAC-RANGE=100b
Theoutputrangecanbemodifiedafterpower-upor –5 0
resetthroughtheDACrangeregisters(address0x1E
through0x1F).DAC-RANGE=101b
Full-scaleoutputvoltagerange(2) V
Setatpower-uporresetthroughauto-range 0 5
detection.Theoutputrangecanbemodifiedafter
power-uporresetthroughtheDACrangeregisters
(address0x1Ethrough0x1F).DAC-RANGE=111b
Theoutputrangecanbemodifiedafterpower-upor 0 10
resetthroughtheDACrangeregisters(address0x1E
through0x1F).DAC-RANGE=110b
Transition:Code400htoC00htowithin½LSB,RL= 10
2kΩ,CL=200pF.0to10Vand–10to0Vranges
Outputvoltagesettlingtime µs
Transition:Code400htoC00htowithin½LSB,RL= 10
2kΩ,CL=200pF.0to5Vand–5to0Vranges
Transition:Code400htoC00h,10%to90%,RL=2 1.25
kΩ,CL=200pF.0to10Vand–10to0Vranges
Slewrate V/µs
Transition:Code400htoC00h,10%to90%,RL=2 1.25
kΩ,CL=200pF.0to5Vand–5to0Vranges
Shortcircuitcurrent Full-scalecurrentshortedtotheDACgroupAVSSor ±45 mA
AVCCvoltage
Sourceorsinkwith1-VheadroomfromtheDAC ±15
Loadcurrent(3) groupAVCCorAVSSvoltage,voltagedrop<25mV mA
Sourceorsinkwith300-mVheadroomfromtheDAC ±10
groupAVCCorAVSSvoltage,voltagedrop<25mV
Maximumcapacitiveload(4) RL=∞ 0 10 nF
DCoutputimpedance Codesetto800h,±15mA 1 Ω
Power-onovershoot AVEE=AVSSB=AVSSC=AVSSD=AGND,AVCC=0 10 mV
to12V,2-msramp
Glitchenergy Transition:Code7FFhto800h;800hto7FFh 1 nV-s
TA=25°C,1kHz,code800h,includesinternal 520 nV/√Hz
referencenoise
Outputnoise
TcoAd=e2850°0Ch,,iinntcelgurdaetesdinnteorisnealfrroemfer0e.n1cHeznotois1e0Hz, 20 µVPP
CLAMPOUTPUTS
DACoutputrange:0to10V,AVSS=AGND 0
Clampoutputvoltage(5) DACoutputrange:0to5V,AVSS=AGND 0 V
DACoutputrange:–10to0V,AVSS=–12V AVSS+2
DACoutputrange:–5to0V,AVSS=–6V AVSS+1
Clampoutputimpedance 8 kΩ
(2) TheoutputvoltageofeachDACgroupmustnotbegreaterthanthatofthecorrespondingAV pin(AV orAV )orlowerthan
CC CC_AB CC_CD
thatofthecorrespondingAV pin(AV ,AV ,AV orAV ).SeetheDACOutputRangeandClampConfigurationsectionfor
SS EE SSB SSC SSD
moredetails.
(3) Ifallchannelsaresimultaneouslyloaded,caremustbetakentoensurethethermalconditionsforthedevicearenotexceeded.
(4) Tobesampledduringinitialreleasetoensurecompliance;notsubjecttoproductiontesting.
(5) NoDACloadtotheDACgroupAV pin.
SS
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