RC0603FR-0710RL

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Contains all support circuitry needed

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ADS79XXEVM TI1 | Alldatasheet

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Datasheet sections

1 EVM Overview
2 AnalogInterface
3 DigitalInterface
4 Power Supplies
5 VoltageReference
6 EVM Operation
7 ADS7953EVM-PDK KitOperation
8 EvaluatingPerformancewiththeADCPro Software
9 Schematicand BillofMaterials
1 ADS7953EVM (Left)and ADS7953EVM-PDK (Right)
2 ADS7953EVM DefaultJumper Locations
3 MMB0 InitialSetup
4 Connectingan AC Adapter
5 LaboratoryPower-SupplyConnection
6 NI-VISADriverInstallation
7 NI-VISADriverInstallationQuestion
8 NI-VISADriverInstalling
9 NI-VISADriverCompleteInstallation
10 NI-VISADriverVerificationUsingDeviceManager
11 ADCPro SoftwareStart-upDisplayWindow
12 ADS7953EVM-PDK Plug-InDisplayWindow
13 InstallNew DriverWizardScreen1
14 InstallNew DriverWizardScreen2
15 InstallNew DriverWizardScreen3
16 InstallNew DriverWizardScreen4
17 InstallNew DriverWizardScreen5
18 USBSytx DriverVerificationUsingDeviceManager
19 ChannelEnable
20 Manual ChannelControl
21 SerialClock,InputRange and MS Nibblesettings
22 Highand Low AlarmLimitsby Channel
23 GPIO and System MonitorControloptions
24 GPIO selection,controlsand indicators
25 ProgressBar WhileCollectingData
26 ADS7953EVM Schematic
1 EVM-CompatibleDeviceData Sheets
2 PrimaryAnalogInterfacePinout
3 SecondaryAnalogInterfacePinout
4 SerialInterfacePins
5 P3 Configuration:Power-SupplyInput
6 ListofJumpers
7 ADS7953EVM BillofMaterials
2 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay

User's Guide SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK Figure1. ADS7953EVM (Left)and ADS7953EVM-PDK (Right) Thisusersguidedescribesthe characteristics,operation,and use of the ADS7953EVM, ADS7957EVM and ADS7961EVM, both by themselvesand as partof the ADS7953EVM-PDK, ADS7957EVM-PDK or ADS7961EVM-PDK. These evaluationmodules (EVMs) areevaluationboardsfortheADS7953 ,a 12-bit, 16-channel,successiveapproximationregister(SAR) analog-to-digitalconverter(ADC),and theADS7957 and ADS7961 , which are 10-bitand 8-bitvariationsof the ADS7953. The EVM allowsevaluationof all aspects of the ADS7953, ADS7957 or ADS7961 device.Complete circuitdescriptions,schematic diagrams,and billsofmaterialareincludedinthisdocument. The followingrelateddocuments areavailablethroughtheTexas Instrumentswebsiteathttp://www.ti.com. ADCPro isa trademarkofTexas Instruments. Microsoft,Windows XP areregisteredtrademarksofMicrosoftCorporation. I2C isa trademarkofNXP Semiconductors. Allothertrademarksarethepropertyoftheirrespectiveowners. 1SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

www.ti.com EVM Overview

1 EVM Overview

Table1.EVM-Compatible Device Data Sheets Device LiteratureNumber ADS7953, ADS7952, ADS7951, ADS7950, ADS7957, ADS7956, SLAS605ADS7955, ADS7954, ADS7961, ADS7960, ADS7959, ADS7958 OPA365 SBOS365 REF5025 SBOS410

1.1 Features

ADS7953EVM/ADS7957EVM/ADS7961 EVM Features:

Containsallsupportcircuitryneeded fortheADS7953/ADS7957/ADS7961
Voltagereferenceoptions:externaloronboard
Bufferoptions:onboardanaloginputbuffercan be bypassed
GPIO accesswithHI orLO alarmoptionstointerrupthostprocessor
CompatiblewiththeTIModularEVM System ADS7953EVM/ADS7957EVM/ADS7961EVM-PDK Features:
Easy-to-useevaluationsoftwareforMicrosoft® Windows XP ®
Data collectiontotextfiles
Built-inanalysistoolsincludingscope,FFT, and histogramdisplays
Completecontrolofboardsettings
Easilyexpandablewithnew analysisplug-intoolsfromTexas Instruments Foruse witha computer,theADS79xxEVM PerformanceDemonstrationKit(PDK) isavailable.Thiskit combinestheADS7953EVM, ADS7957EVM orADS7961EVM boardwiththeTMS320VC5507 DSP-based MMB0 motherboard,and includesADCPro ™ softwareforevaluation. The MMB0 motherboardallowstheADS79xxEVM tobe connectedtothecomputerviaan availableUSB port.Thismanual shows how touse theMMB0 as partoftheADS79xxEVM-PDK, butdoes notprovide technicaldetailsabouttheMMB0 itself. ADCPro isa programforcollecting,recording,and analyzingdatafromADC evaluationboards.Itisbased on a number ofplug-inprograms,so itcan be expanded easilywithnew testand datacollectionplug-ins. The ADS79xxEVM-PDK iscontrolledby a pluginrunninginADCPro. Formore informationaboutADCPro, see theADCPro Analog-to-DigitalConverterEvalutationSoftwareUsersGuide,availablefordownload fromtheTIwebsite. Thismanual coverstheoperationofallthreeADS7953, ADS7957 and ADS7961 devicesreferedtoas the ADS79xxEVM and theADS79xxEVM-PDK. Throughoutthisdocument,theabbreviationEVM and theterm evaluationmodule aresynonymous withtheADS79xxEVM. Forclarityofreading,therestofthismanual willreferonlytotheADS7953EVM orADS7953EVM-PDK. The individualkitcontainsone ADS7953EVM, ADS7957EVM orADS7961EVM, butoperationoftheEVM and kitfortheADS7957 orADS7961 is identical,unlessotherwisenoted.

1.2 Introduction

The ADS7953EVM isan evaluationmodule builttotheTIModularEVM System specification.Itcan be connectedtoany ofthemodularEVM systeminterfacecardsavailablefromTexas Instruments. The ADS7953EVM isavailableas a stand-aloneprintedcircuitboard(PCB) oras partofthe ADS7953EVM-PDK, whichincludesan MMB0 motherboardand software.As a stand-alonePCB, the ADS7953EVM isusefulforprototypingdesignsand firmware. Note thattheADS7953EVM has no microprocessorand cannotrunsoftware.To connectittoa computer, some typeofhostprocessorinterfacecapableofgeneratingthenecessarycontrolsignalsisrequired. 3SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

AnalogInterface www.ti.com

2 Analog Interface

Formaximum flexibility,theADS7953EVM isdesignedforeasy interfacingtomultipleanalogsources. Samtec partnumbers SSW-110-22-F-D-VS-Kand TSM-110-01-T-DV-Pprovidea convenient10-pin, dual-row,header/socketcombinationatP1.Thisheader/socketprovidesaccesstotheanaloginputpins associatedwithCH0-CH7 oftheADS7953. ConsultSamtec athttp://www.samtec.comorcall 1-800-SAMTEC-9 fora varietyofmatingconnectoroptions.Samtec partnumber TMS-108-02-G-D providesaccesstoanaloginputchannelsCH8-CH15 atJ1. Most ofthepinson P1 and J1 aredirectlyconnectedtotheADS7953 usinga simpleR/C filterwithno additionalovervoltageprotectioncircuitry.Use appropriatecautionwhen handlingthesepins.Table2 and Table3 summarize thepinoutsforanaloginterfacesP1 and J1,respectively. Table2.PrimaryAnalog InterfacePinout Pin Number Signal Description P1.2 CH7 CH7 input P1.4 CH6 CH6 input P1.6 CH5 CH5 input P1.8 CH4 CH4 input P1.10 CH3 CH3 input P1.12 CH2 CH2 input P1.14 CH1 CH1 input P1.16 CH0 CH0 input Externalreferencesourceinput(– sideofP1.18 EXTREFN differentialinput) Externalreferencesourceinput(+sideofP1.20 EXTREFP differentialinput) J9.15 Unused — P1.1-19(odd) AGND Analoggroundconnections(exceptJ1.15) Table3.Secondary Analog InterfacePinout Pin Number Signal Description J1.2 CH15 CH15 input J1.4 CH14 CH14 input J1.6 CH13 CH13 input J1.8 CH12 CH12 input J1.10 CH11 CH11 input J1.12 CH10 CH10 input J1.14 CH9 CH9 input J1.16 CH8 CH8 input J1.1-15(odd) AGND Analoggroundconnections

4 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com DigitalInterface

3 DigitalInterface

3.1 SerialData Interface

The ADS7953EVM isdesignedtoeasilyinterfacewithmultiplecontrolplatforms.Samtec partnumbers SSW-110-22-F-D-VS-Kand TSM-110-01-T-DV-Pprovidea convenient10-pin,dual-row,header/socket combinationatP2.Thisheader/socketprovidesaccesstothedigitalcontroland serialdatapinsofthe ADC. ConsultSamtec athttp://www.samtec.comorcall1-800-SAMTEC-9 fora varietyofmating connectoroptions. Table4 describestheP2 serialinterfacepins. Table4.SerialInterfacePins Pin No. Pin Name SignalName I/OType Pullup Function P2.1 CNTL CS In None ControlsCS input,Jumper optionwithP2.7viaW5 P2.2 GPIO0 GPIO2 In/Out High GPIO P2.3 CLKX SCLK In None ADS79xx serialclock P2.4 DGND DGND NA None DigitalGround P2.5 CLKR CLKR Out None serialclockreturntoDSP P2.6 GPIO1 GPIO3 In/Out High GPIO P2.7 FSX FSYNC Xmit In None ControlsCS input,Jumper optionwithP2.1viaW5 P2.8 GPIO2 Unused NA NA P2.9 FSR FSYNC rtrn Out None P2.10 DGND DGND NA None DigitalGround P2.11 DX DIN In None ADS79xx SPI datain P2.12 GPIO3 Unused NA NA P2.13 DR DOUT Out None ADS79xx dataout P2.14 GPIO4 Unused NA NA P2.15 /INT GPIO0/GPIO1 Out None Hi/LoAlarmInterruptoptions P2.16 SCL SCL I2C ™ n/a I2C clock P2.17 TOUT Unused NA NA P2.18 DGND DGND NA None DigitalGround P2.19 GPIO5 Unused NA NA P2.20 SDA SDA I2C n/a I2C data

3.2 Data Output

AlloutputdatacommunicationsaredirectedthroughDOUT. The datafromall16 channelscan be observedon theDOUT pin.Thisisthesignalthatisused by theADS7953EVM-PDK toreadback and displayallthechanneldataviatheADCPro software. 5SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

Power Supplies www.ti.com

4 Power Supplies

P3 isthepower-supplyinputconnector.Table5 liststheconfigurationdetailsforP3.Only+5V analogand +5V digitalisrequiredtopower theEVM. Ifdesired,a jumperoption(W6) isprovidedtosupplythe ADS7953 digitalcorewith+3.3V. Table5.P3 Configuration:Power-Supply Input Pin No. Pin Name Function Required J3.1 +VA +10V to+15V No J3.2 –VA –10V to–15V No J3.3 +5VA +5V analogsupply Always J3.4 –5VA –5V analogsupply No J3.5 DGND Digitalgroundinput Yes J3.6 AGND Analoggroundinput Yes J3.7 +1.8VD 1.8Vdigitalsupply No J3.8 VD1 Not used No J3.9 +3.3VD 3.3Vdigitalsupply Yes,if+5VD isnotused J3.10 +5VD +5V Yes,if+3.3VD isnotused The ADS7953 digitalsectioncan be powered from+3.3V or+5V by means ofjumperoptionW6.

5 VoltageReference

The ADS7953EVM has threesourcesforthereferencevoltage.Jumper W2 can selecttheREFP voltage fromeithertheREF5025(U3) orfroman externalsourceappliedtoP1.18.Jumper W3 can selectthe REFM voltagefromeithertheanalogground(AGND) orfroman externalsourceappliedtoP1.20.

6 EVM Operation

The followingsectionprovidesinformationon theanaloginput,digitalcontrol,and generaloperating conditionsoftheADS7953EVM.

6.1 Analog Input

Eightoftheanaloginputsources(channels0-7)can be applieddirectlytoP1 (toporbottomside)or throughsignal-conditioningmodules availableforthemodularEVM system.The additionaleightchannel sources(CH8-CH15) can be appliedtoconnectorJ1.The analoginputrangeon theEVM isidenticalto thatoftheinstalleddeviceand isdependenton theRANGE settingoftheADC (0to5V or0 to2.5V) Each inputsignalcan be configuredtoconnectdirectlytotheanaloginputsoftheADS7953 througha 33Ω seriesresistorwithan 0.027pFcapacitortoAGND. The inputtoCH0 can use theOPA365 bufferthat isprovided(defaultcondition,W4 jumperedpins1-2).Jumper W4 can be placedon pins2-3tobypass theunitygainbufferconfigurationoftheOPA365.

6.2 DigitalControl

The digitalcontrolsignalscan be applieddirectlytoP5 (toporbottomside).The modularADS7953EVM can alsobe connecteddirectlytoa DSP ormicrocontrollerinterfaceboard,such as the5-6KInterfaceor HPA-MCUInterfaceboardsavailablefromTexas Instruments.When purchasedas partofa PDK, the ADS7953EVM can be controlledby theMMB0. Fora listofcompatibleinterfaceand/oraccessoryboards fortheEVM ortheADS7953, see therelevantproductfolderon theTIwebsite.Allofthedigitalsignals arecontrolleddirectlywithpinson P2.

6 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com EVM Operation

6.3 ADS7953EVM-PDK Power Supply

The analogportionoftheADS7953EVM can eitherbe powered by a 5V sourcegeneratedviaac adapter orby applyingthe+5VA totheconnectoron theMMB0 board.The MMB0 boardwillprovidethedigital5V and 3.3VtotheADS7953EVM. To provide+5VA totheADS7953EVM fromtheMMB0 board,make sure thejumperatJ13 (ontheMMB0) isclosedfrom+5V to+5VA.

6.4 DefaultJumper Settings

Figure2 shows thejumpersfoundon theEVM and therespectivefactorydefaultconditionsforeach. Figure2.ADS7953EVM DefaultJumper Locations Table6 liststhejumpersfoundon theEVM and therespectivefactorydefaultconditionsforeach. Table6.ListofJumpers Switch DefaultPosition Switch Description W1 Open W1 isnotinstalledinproductionboards W2 selectstheREFP source,onboard(default)orexternalviaW2 Short1-2 P1.18 W3 selectstheREFM source,AGND (default)orexternalviaW3 Short1-2 P1.20 W4 selectstheCH0 inputconfiguration,buffered(default)orW4 Short1-2 bypassed W5 selectstheCS sourceon theADS7953, FSX (default)orW5 Short1-2 CNTL W6 Short1-2 W6 selectstheDV DD Voltage,+5VD (default)or+3.3VD W7 selectsthehostprocessorinterruptsource,GPIO1 (default)W7 Short1-2 orGPIO0 7SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

ADS7953EVM-PDK KitOperation www.ti.com

7 ADS7953EVM-PDK KitOperation

Thissectionprovidesinformationon usingtheADS7953EVM-PDK, includingsetup,programinstallation, and programusage. To preparetoevaluatetheADS7953 withtheADS7953EVM-PDK, completethefollowingsteps: Step1.InstalltheADCPro software(ifnotalreadyinstalled)on a PC. Step2.InstalltheADS7953EVM-PDK EVM plug-insoftware. Step3.Setup theADS7953EVM-PDK. Step4.Connecta properpower supplyoruse theincludedAC adapter. Step5.CompletetheNI-VISAUSB driverinstallationprocess. Step6.Run theADCPro software. Step7.CompletetheMicrosoftWindows USB driverinstallationprocess. Each taskisdescribedinthesubsequentsectionsofthisdocument.

7.1 InstallingtheADCPro Software

Do not connect the ADS7953EVM-PDK beforeinstallingthe softwareon a suitablePC. Failureto observethiscautionmay cause MicrosoftWindows to notrecognizetheADS7953EVM-PDK. The latestsoftwareisavailablefromtheTIwebsiteathttp://www.ti.com/.The ADCPro installerwillcheck forupdateswhen executed(ifconnectedtotheInternet),and thengivestheoptionofdownloadingand installingthelatestversion.See theADCPro Analog-to-DigitalConverterEvalutationSoftwareUsers Guide forinstructionson installingand usingADCPro. versionnumber,and incrementswithsoftwareversionreleases).Double-clickthefiletorunit;thenfollow theinstructionsshown.Also,use theADCPro Update Check featuretocheckfornewer versionsofthe ADS7953EVM-PDK plug-in,once one versionhas been installed. The softwareshouldnow be installed,buttheUSB driversmay nothave been loadedby thePC operating system.Thisstepwillcompletewhen theADCPro softwareisexecuted.

7.2 SettingUp theADS7953EVM-PDK

The ADS7953EVM-PDK containsboththeADS7953EVM and theMMB0 motherboard;however,the devicesareshippedunconnected.Followthesestepstosetup theADS7953EVM-PDK: Step1.Unpack theADS7953EVM-PDK kit. Step2.Setthejumpersand switcheson theMMB0 as shown inFigure3.

SettheBootMode switchtoUSB.
Connect+5V and +5VA on jumperblockJ13 (if+5V issuppliedfromJ14 +5VA).
Leave +5V and +VA disconnectedon jumperblockJ13.
IfthePDK willbe powered froman ac adapter,connectJ12.IfthePDK willbe powered throughthe terminalblock,disconnectJ12 (seeSection7.3ofthisdocument foradditionalpower supply connectiondetails).

8 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com ADS7953EVM-PDK KitOperation Figure3.MMB0 InitialSetup Step3.PlugtheADS7953EVM intotheMMB0. The femaleportionofP1,P2 and P3 on theEVM align withmale connectorsJ7,J4 and J5 respectiveon theMMB0. CAUTION Do notmisalignthepinswhen pluggingtheADS7953EVM intotheMMB0. Check thepin alignmentofP1,P2,and P3 carefullybeforeapplyingpower tothePDK. Step4.Verifythejumperson theADS7953EVM areas shown inFigure2 (notethatthesesettingsarethe factory-configuredsettingsfortheEVM).

7.2.1 About theMMB0

The MMB0 isa ModularEVM System motherboard.ItisdesignedaroundtheTMS320VC5507, a DSP withan onboardUSB interfacefromTexas Instruments.The MMB0 alsohas 16MB ofSDRAM installed. The MMB0 isnotintendedtobe used as a DSP developmentboard,and itisnotavailableseparately.TI cannotoffersupportfortheMMB0 exceptas partofan EVM-PDK kit.Forschematicsorotherinformation abouttheMMB0, contactTexas Instruments.

7.3 Connecting thePower Supply

The ADS7953EVM-PDK can be operatedwitha unipolar+5V supplyora combinationof+5V and +3.3V supplies. When theMMB0 DSP ispowered properly,LED D2 glowsgreen.The greenlightindicatesthatthe3.3V supplyfortheMMB0 isoperatingproperly.(Itdoes not indicatethattheEVM power suppliesare operatingproperly.) 9SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

ADS7953EVM-PDK KitOperation www.ti.com

7.3.1 Connecting an AC Adapter

An ac adaptercan be connectedtobarreljackJ2 on theMMB0. J2 islocatednexttotheUSB connector. The adaptermust output6V-7V dc.The connectormust be sleeve-negative,tip-positive.Itshouldhave a currentratingofatleast2A. Jumper J12 on theMMB0 connectsa wall-mountedpower supplytotheboard.To use thewall-mount supply,J12 must be shorted.Figure4 illustrateshow toconnectan ac adaptertotheMMB0. Figure4.Connecting an AC Adapter

7.3.2 Connecting a LaboratoryPower Supply

A laboratorypower supplycan be connectedthroughterminalblockJ14 on theMMB0, as shown in Figure5. To use a unipolarlabpower supplyconfiguration:

DisconnectJ12 on theMMB0.
Connecta +5V dc supplytothe+5VD terminalon J14.
Connectgroundofthedc supplytotheGND terminalon J14. Itisnotnecessarytoconnecta +5V dc supplyvoltagetothe+5VA terminalon J14 ifthe+5V/+5VA positionon J13 isshorted.

10 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com ADS7953EVM-PDK KitOperation Figure5.LaboratoryPower-Supply Connection

7.4 Running theSoftwareand Completing DriverInstallation

Note:The softwareiscontinuallyunderdevelopment.These instructionsand screenimages arecurrentat thetimeofthiswriting,butmay notexactlymatch futurereleases. The programforevaluatingtheADS7953EVM-PDK iscalledADCPro. Thisprogramuses plug-insto communicatewiththeEVM. The ADS7953EVM-PDK plug-inisincludedintheADS7953EVM-PDK package. The programcurrentlyrunsonlyon MicrosoftWindows platformsofWindows XP; Windows VistaisNOT supportedatthetimeofthiswriting. IfthisisthefirsttimeinstallingADCPro and theEVM plug-ins,followtheseprocedurestorunADCPro and completethenecessarydriverinstallation.

7.4.1 NI-VISAUSB Device DriverInstallation

AftertheADCPro softwareisinstalled,applypower tothePDK and connecttheboardtoan available PC USB port. 2. The computershouldrecognizenew hardwareand begininstallingthedriversforthehardware. Figure6 throughFigure10 areprovidedforreferencetoshow theinstallationsteps.

Forthefirstscreen,Figure6,itisnotnecessarytosearchforthesoftware;ithas alreadybeen installedtothePC.
Fortheremainingsteps,acceptthedefaultsettings. 11SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

ADS7953EVM-PDK KitOperation www.ti.com Figure6.NI-VISADriverInstallation Figure7.NI-VISADriverInstallationQuestion

12 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com ADS7953EVM-PDK KitOperation Figure8.NI-VISADriverInstalling Figure9.NI-VISADriverComplete Installation 13SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

ADS7953EVM-PDK KitOperation www.ti.com ThisprocedureshouldcompletetheinstallationoftheNI-VISAdrivers.Verifytheproperinstallationby openingtheDeviceManager and locatingas shown inFigure10. Figure10.NI-VISADriverVerificationUsing Device Manager Once ADCPro isinstalled,installtheADS7953EVM-PDK softwaretoallowADCPro torecognizethe evaluationboard.

7.4.2 USBStyx DriverInstallation

Startthesoftwareby selectingADCPro fromtheWindows Startmenu. The screeninFigure11 appears. Figure11.ADCPro SoftwareStart-upDisplayWindow 1. SelectADS7953EVM fromtheEVM drop-downmenu. The ADS7953EVM-PDK pluginappearsinthe leftpane,as shown inFigure12.

14 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com ADS7953EVM-PDK KitOperation Figure12.ADS7953EVM-PDK Plug-InDisplayWindow 2. The ADS7953EVM-PDK plug-inwindow has a statusareaatthetopofthescreen.When theplug-inis firstloaded,theplug-insearchesfortheboard.The userwillsee a seriesofmessages inthestatus areaindicatingthisaction. 3. Iftheoperatingsystemdrivershave notbeen loaded,Windows willdisplaytheWindows InstallNew DriverWizardsequence (illustratedinFigure13 throughFigure17).Acceptthedefaultsettings.

NOTE: Duringthedriverinstallation,a message may appearindicatingthefirmwareloadhas TIMED OUT. ClickOK and continuedriverinstallation.The plug-inwillattempttodownloadthe firmwareagainonce thedriverinstallationcompletes. 15SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

ADS7953EVM-PDK KitOperation www.ti.com Figure13.InstallNew DriverWizard Screen 1 Figure14.InstallNew DriverWizard Screen 2

16 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com ADS7953EVM-PDK KitOperation Figure15.InstallNew DriverWizard Screen 3 Figure16.InstallNew DriverWizard Screen 4 17SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

ADS7953EVM-PDK KitOperation www.ti.com Figure17.InstallNew DriverWizard Screen 5 4. Once Windows finishesinstallingthesoftwaredriver,theplug-indownloadsthefirmwaretotheMMB0. The statusareawilldisplayConnectedtoEVM when thedeviceisconnectedand readytouse.Ifthe firmwaredoes notloadproperly,tryresettingtheMMB0 by pressingresetand thenreloadingthe plug-in. 5. VerifytheproperinstallationoftheUSBStyx driverusingtheDeviceManager.Note thatthefirstdriver item,NI-VISAUSB Devices,willdisappearand a new item,LibUSB-Win32 Deviceswillappear,as Figure18 shows. Figure18.USBSytx DriverVerificationUsing Device Manager The driverinstallationwizardsequence shouldnotappearagain,unlesstheboardisconnectedtoa differentUSB port.

18 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com EvaluatingPerformancewiththeADCPro Software

8 EvaluatingPerformance withtheADCPro Software

The evaluationsoftwareisbased on ADCPro, a programthatoperatesusinga varietyofplug-ins.(The ADS7953EVM plug-inisinstalledas describedintheprevioussection.) To use ADCPro, loadan EVM plug-inand a testplug-in.To loadan EVM plug-in,selectitfromtheEVM menu. To loada testplug-in,selectitfromtheTestmenu. To unloada plug-in,selecttheUnloadoption fromthecorrespondingmenu. Onlyone ofeach kindofplug-incan be loadedata time.Ifselectinga differentplugin,thepreviousplugin isunloaded.

8.1 Using theADS7953EVM-PDK Plug-in

The ADS7953EVM-PDK plug-inforADCPro providescompletecontroloverallsettingsoftheADS7953. It consistsofa tabbedinterface(seeFigure19),withdifferentfunctionsavailableon differenttabs.These controlsaredescribedinthissection. The usercan adjusttheADS7953EVM settingswhen notacquiringdata.Duringacquisition,allcontrols aredisabledand settingsmay notbe changed. When a settingischanged on theADS7953EVM plug-in,thesettingimmediatelyupdateson theboard. Settingson theADS7953EVM correspondtosettingsdescribedintheADS7953 productdatasheet;see theADS7953 datasheetfordetails. Because theeffectivesamplingrateoftheADS7953 depends upon settingsoftheClockFreqand the number ofchannelsbeingsampled,theSampling Rate indicatorintheupperrightcorneroftheplug-in interfaceisalwaysvisibleand updateswhenever a settingchanges thataffectstheeffective'per-channel' samplingrate. 19SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

EvaluatingPerformancewiththeADCPro Software www.ti.com

8.1.1 Channel Tab

The ADS7953 can acquirefromone tosixteenchannelssequentiallyorina userdefinedpattern.The ChannelTab (asshown inFigure19)providesthecontroltoturneach channelon oroff.By default, manual channelmode isenabled.Inmanual mode, any singlechannelmay be selectedforconversion. Figure19.Channel Enable

20 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com EvaluatingPerformancewiththeADCPro Software Inaddition,theManual Controlbutton(shown inFigure20)can be used toenableordisableautoscan modes 1 and 2.Auto1 Mode allowstheselectionofany number ofchannelsfromthechannelselection list.Auto2 Mode allowstheselectionofthehighestchanneltoconvert.Allchannelsbelowthiswillbe convertedonce thisselectionismade by pressingthe'AcceptSelection'button. Figure20.Manual Channel Control 21SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

EvaluatingPerformancewiththeADCPro Software www.ti.com

8.1.2 Other Tab

The ADS7953 requiresa clocktooperate.The maximum frequencyisselectedby defaultforthedifferent operatingmodes, providingthemaximum 1MSPS throughputratespecifiedinthedatasheet. The clocksettingcan be modifiedinthistabby acceptingthedefaultSPI orclockstopmode, a continuousclockmode withthefastestpossibleserialclock,ora continuousclockmode witha variable frequency. The analoginputrangecan alsobe specifiedinthistabas wellas thecontentsofthefourMSBs of channeldata(GPIO statusorChannelAddressoftheconversionresults). Figure21.SerialClock,InputRange and MS Nibblesettings

22 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com EvaluatingPerformancewiththeADCPro Software

8.1.3 Alarm Tab

The ADS7953 offersconfigurablealarmoutputsforbothhighand lowalarmselections.The configuration ofthealarmfunctiontakesplaceintwo steps,thefirstofwhichisthesettingofthealarmlimits.Inthe AlarmTab,thehex valuesforhighand lowlimitsareenteredforeach channelrequiringthealarm function.To enablethealarmfunctions,theGPIO Functiontabmust be considerednext. Figure22.High and Low Alarm Limitsby Channel 23SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

EvaluatingPerformancewiththeADCPro Software www.ti.com

8.1.4 GPIO FunctionTab

The GPIO0, GPIO1, GPIO2 and GPIO3 pinson theADS7953 can functionas simplegeneralpurpose inputs/outputsoras specializedcontroland monitorfunctions.The alarmfunctiondescribedinthe previoussectionisprocessedby GPIO0 and GPIO1. Refertothedatasheetforspecificdetailson GPIO0 and GPIO1 options.GPIO2 can be used toconfiguretheinputrangeoftheADS7953 (2.5Vmax or5.0V max),and GPIO3 can be used as a power down inputpin. Figure23.GPIO and System MonitorControloptions

24 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com EvaluatingPerformancewiththeADCPro Software

8.1.5 GPIO Tab

The GPIO Tab providesa means tomonitorand controlGPIO functions.Ifa GPIO isselectedintheGPIO Functiontabtoperforma specializedfunction,itwillappear'grayedout'intheGPIO tab.Forpins configuredas GP outputs,a push buttonwillenabletheusertosetthedesiredoutputstate.GP Inputsare monitoredwithan LED display(brightgreen= logichigh). Figure24.GPIO selection,controlsand indicators 25SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

Schematicand BillofMaterials www.ti.com

8.1.6 CollectingData

Once theuserhas configuredtheADS7953 forthetestscenario,presstheADCPro Acquirebuttonto startthecollectionofthenumber ofdatapointsspecifiedintheTestplug-inBlockSizecontrol.The ADS7953EVM-PDK plug-indisablesallthefrontpanelcontrolswhileacquiring,and displaysa progress baras shown inFigure25. Figure25.Progress Bar While CollectingData Formore informationon testinganalog-to-digitalconvertersingeneraland usingADCPro and Test plug-ins,refertotheADCPro Analog-to-DigitalConverterEvalutationSoftwareUsersGuide.

8.2 Troubleshooting

IfADCPro stopsrespondingwhiletheADS7953EVM-PDK isconnected,tryunpluggingthepower supply fromthePDK. Unloadand reloadtheplug-inbeforereapplyingpower tothePDK.

9 Schematic and BillofMaterials

CompleteschematicsfortheADS7953EVM areappended tothisuserguide.The billofmaterialsis providedinTable7.Gerberfilesareavailableon request.Pleasee-mailsupport@ti.comand ask for detailson how toreceivethefiles.

26 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

+VCC R5 33 AGND R13 33 AGND R6 33 AGND R4 33 AGND R3 33 AGND R2 33 AGND R7 33 AGND R8 33 AGND R9 33 AGND R10 33 AGND R1 33 AGND CH0 CH1 CH2 CH3 CH4 CH5CH6 CH7 CH15CH14CH13 REF+ W3REF- AGND -In +In Output 7 4 U1 OP A365 R1 1 NI R120 AGND CH0 C23 0.1uF C17 10uF AGND CH10 CH9 CH8 CH7CH6 AGND VREF+ INT AGND C12 270pFC1 1 270pFC10 270pFC9 270pFC8 270pF C7 270pF C6 270pF C5 270pFC4 270pFC3 270pF C15 NI C22 270pF C21 10uF C25 0.1uF DGND R15 SDOSDI SCLK 135791 1131719 2468101214161820 1 3 5 7 9 1 1 13 17 19 2 4 6 8 10 12 14 16 18 20 15P2 C19 0.1uF C18 10uF C20 1.0uF REF_M TP3 1 2 3 4 5 6 7 8 9 10 P3B R16 33 R14 CS* CLKX FSX GPIO2 GPIO3 AGND/REFM REFP +V A AGND MXD AINP AGND/AINM NC/Ch15 1 1 NC/Ch14 AGND AGND NC/Ch13 NC/Ch12 Ch1 1 Ch10 Ch9 Ch8 AGND Ch7 Ch6 Ch5 Ch4 Ch3 Ch2 Ch1 Ch0 VCC CS SCLK VEE SDI SDO BDGND +VBD GPIO0 GPIO1 U2 ADS79XX +VCC +VCC C26 10uF Ch0_FL T C16 0.1uF Ch0_FL T Ch1_FL T Ch2_FL T Ch3_FL T Ch4_FL T Ch5_FL TSDO SDI CH12 CH1 1 CH10 CH9 CH8 Ch1_FL T Ch2_FL T Ch3_FL T Ch4_FL T Ch5_FL T R21 33 AGND CH1 1 C24 270pF R17 33 AGND CH15 C1 270pF R18 33 AGND CH14 C2 270pF R19 33 AGND CH13 C13 270pF R20 33 AGND CH12 C14 270pF REF_M TP1 +VCC REF_P TP2 VREF+ REF_P REF+REF- Vo Trim T emp GND Vin NC NC NC U3 REF5025 GND GND 1 1 J1 8X2X.1 R2210 C27 10uF +VCC VCC_D VCC_D C29 1.0uF C28 1.0uF GND SDA SCL WP VCC U4 MCP_24LC256 R24NI R23 33 VCC_D R25 47.5K R26 47.5K VCC_D C31 10uF C30 1.0uF VCC_D www.ti.com Schematicand BillofMaterials Figure26.ADS7953EVM Schematic 27SLAU262C –January2009–RevisedMay 2011 ADS79xxEVM and ADS79xxEVM-PDK SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

Schematicand BillofMaterials www.ti.com

9.1 BillofMaterials

Note:Allcomponents shouldbe compliantwiththeEuropean UnionRestrictionon Use ofHazardous Substances(RoHS) Directive.Some partnumbers may be eitherleadedorRoHS. Verifythatpurchased components areRoHS-compliant.(Formore informationaboutTI'spositionon RoHS compliance,see the TIwebsite.) Table7.ADS7953EVM BillofMaterials ItemNo. Qty Ref Des Description Vendor PartNumber 1 1 N/A PrintedWiring TI Board 2 0 C15 Not Installed 3 0 R11 R14 R24 Not Installed 4 16 C1 -C14 C22 C24 CAP CER 270PF TDK C1608C0G1H271J 50V C0G 5% 0603 5 4 C16 C19 C23 C25 CAP CER 0.10UF TDK C1608X7R1E104K 25V X7R 10% 0603 6 6 C17 C18 C21 C26 CAP CERAMIC Panasonic ECJ-1VB0J106M C27 10UF 6.3VX5R 0603 7 4 C20 C28 C29 C30 CAP CER 1.0UF TaiyoYuden EMK107B7105KA-T 16V X7R 0603 8 1 J1 8X2X.1 Header Samtec TMS-108-02-G-D 9 1 J2 2X2X.1 Header Samtec TMS-102-02-G-S 10 2 P1 P2 (topside) 10 Pin,DualRow, Samtec TSM-110-01-T-DV- SMT Header (20P P 11 2 P1B P2B (bottom 10 Pin,DualRow, Samtec SSW-110-22-F-D- side) SMT Socket(20P VS-K 12 1 P3 (topside) 5 Pin,DualRow, Samtec TSM-105-01-T-DV- SMT Header (10Po P 13 1 P3B (bottomside) 5 Pin,DualRow, Samtec SSW-105-22-F-D- SMT Socket(10Po VS-K 14 19 R1 -R10 R13 R15 - RES 33.0OHM Yageo RC0603FR-0733RL 1/10W 1% 0603 SMD 15 1 R12 RES 0.0OHM Yageo RC0603JR-070RL 1/10W 5% 0603 SMD 16 1 R22 RES 10.0OHM Yageo RC0603FR-0710RL 1/10W 1% 0603 SMD 17 2 R25 R26 RES 47.5KOHM Yageo RC0603FR- 1/10W 1% 0603 0747K5L SMD 18 3 TP1 TP2 TP3 TEST POINT PC Keystone 5001 MINI .040D RED 19 2 GND GND TEST POINT PC Keystone 5011 MULTI PURPOSE BLK 20 1 U1 2.2V,50MHz, TI OPA365AID Low-Noise, Single-Sup 21 1 U2 12/10/8-Bit,1 TI ADS7953/52/51/50 MSPS, 16/12/8/4-Cha 22 1 U3 Low-Noise,Very TI REF5025ID Low Drift,Precisi 23 1 U4 IC SERIAL Microchip 24LC256T-I/SN EEPROM 256K 2.5V8-SOIC

28 ADS79xxEVM and ADS79xxEVM-PDK SLAU262C –January2009–RevisedMay 2011

www.ti.com RevisionHistory Table7.ADS7953EVM BillofMaterials(continued) ItemNo. Qty Ref Des Description Vendor PartNumber 24 0 W1 Not Installed Samtec TMS-102-02-G-S 25 6 W2 -W7 3 Pin,2mm Header Samtec TMM-103-01-T-S RevisionHistory NOTE: Page numbers forpreviousrevisionsmay differfrompage numbers inthecurrentversion. 29SLAU262C –January2009–RevisedMay 2011 RevisionHistory SubmitDocumentationFeedback Copyright© 2009–2011,Texas InstrumentsIncorporated

A B C D 654321 D C B A ti 12500 TI Boulevard. Dallas, Texas 75243 Title: SHEET: OF: FILE: SIZE: DATE: REV: 17-Nov-2008 Drawn By: Engineer:

Revision History

ADS795x_A.sch DOCUMENTCONTROL # +VCC AGND R13 AGND AGND AGND AGND AGND AGND AGND AGND R10 AGND AGND CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH15 CH14 CH13 REF+ REF- AGND -In 2 +In 3 Output 6 7 4 OPA365 R11 NI R12 AGND CH0 C23 0.1uF C17 10uF AGND CH10 CH9 CH8 CH7 CH6 AGND VREF+ INT AGND 1 1 Tom Hendrick C12 270pF C11 270pF C10 270pF 270pF 270pF C7 270pF C6 270pF 270pF 270pF 270pF C15 NI C22 270pF C21 10uF C25 0.1uF DGND R15 SDO SDI SCLK 1 C19 0.1uF C18 10uF C20 1.0uF REF_M ADS79xx Evaluation Module TP3 1 2 3 4 5 6 7 8 9 10 P3B R16

33 R14

CS* CLKX FSX GPIO2 1 GPIO3 2 AGND/REFM 3 REFP 4 +VA 5 AGND 6 MXD 7 AINP 8 AGND/AINM 9 NC/Ch15 11 NC/Ch14 12 AGND 20 AGND 10 NC/Ch13 13 NC/Ch12 14 Ch11 15 Ch10 16 Ch9 17 Ch8 18 AGND 19 Ch7 21 Ch6 22 Ch5 23 Ch4 24 Ch3 25 Ch2 26 Ch1 27 Ch0 28 VCC 29 CS 31 SCLK 32 VEE 30 SDI 33 SDO 34 BDGND 35 +VBD 36 GPIO0 37 GPIO1 38 ADS79XX +VCC +VCC C26 10uF Ch0_FLT C16 0.1uF Ch0_FLT Ch1_FLT Ch2_FLT Ch3_FLT Ch4_FLT Ch5_FLT SDO SDI CH12 CH11 CH10 CH9 CH8 Ch1_FLT Ch2_FLT Ch3_FLT Ch4_FLT Ch5_FLT R21 AGND CH11 C24 270pF R17 AGND CH15 270pF R18 AGND CH14 270pF R19 AGND CH13 C13 270pF R20 AGND CH12 C14 270pF REF_M TP1 +VCC 1 2 3 4 REF_P TP2 VREF+ REF_P REF+ REF- Vo 6 Trim 5 Temp 3 GND 4 Vin 2 NC 1 NC 7 NC 8 REF5025 GND GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 8X2X.1 R22 C27 10uF +VCC VCC_D VCC_D C29 1.0uF C28 1.0uF A0 1 A1 2 A2 3 GND 4 SDA 5 SCL 6 WP 7 VCC 8 MCP_24LC256 R24 NI R23 VCC_D R25 47.5K R26 47.5K VCC_D C31 10uF C30 1.0uF VCC_D

6503756 Lisa Parker

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Product Information

RC0603FR-0710RL specifications and overview.

Summary

Contains all support circuitry needed

Description

Contains all support circuitry needed

Source title RC0603FR-0710RL Datasheet(PDF) - Texas Instruments

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