TPL0501 256-Taps Single-Channel Digital …

1 SPI INTERFACEWIPERREGISTERHALAWAVDDGNDSCLKDI NCSC opyright 2016, texas instruments IncorporatedProductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &CommunityReferenceDesignAn IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand SEPTEMBER2011 REVISEDMAY2016 TPL0501256-TapsSingle-ChannelDigitalPote ntiometerWith SPI Interface11 Features1 Single-Channel ,256-PositionResolution 100-k End-to-EndResistanceOptions Low TemperatureCoefficient:35 ppm/ C SPI-CompatibleSerialInterface 20%ResistanceTolerance OperatingTemperature.

2 40 C to 125 C ESDP erformanceTestedper JESD22 2000-VHuman-BodyModel(A114-B,ClassII)2 Applications AdjustablePowerSupplies AdjustableGainAmplifiersand OffsetTrimming PrecisionCalibrationof Set PointThresholds SensorTrimmingand Calibration MechanicalPotentiometerReplacement3 DescriptionThe TPL0501deviceis a Single-Channel ,linear-taperdigitalpotent iometerwith256 be usedas a three-terminalpotentiometeror as a TPL0501deviceiscurrentlyofferedwithend-t o-endresistanceof100 k . The internalregistersof the TPL0501devicecan be accessedusinga nominaltemperaturecoefficientof 35 ppm/ availablein an 8-pinSOT-23and8-pinUQFN packagewitha specifiedtemperaturerangeof 40 C to 85 (1)PARTNUMBERPACKAGEBODYSIZE(NOM) TPL0501 UQFN(8) (8) (1) For all availablepackages,see the orderableaddendumatthe end of the SEPTEMBER2011 2011 2016,TexasInstrumentsIncorporatedTableof Contents1 Pin Configurationand Applicationand.

3 1910 Deviceand Mechanical,Packaging,and RevisionHistoryChangesfromRevisionB (August2012)to RevisionCPage AddedDeviceInformationtable,ESDR atingstable,FeatureDescriptionsection,De viceFunctionalModes,ApplicationandImplem entationsection,PowerSupplyRecommendatio nssection,Layoutsection,DeviceandDocumen tationSupportsection,andMechanical,Packa ging, SEPTEMBER2011 REVISEDMAY2016 SubmitDocumentationFeedbackCopyright 2011 2016,TexasInstrumentsIncorporated5 Pin Configurationand FunctionsRSEP ackage8-PinUQFNTop ViewDCNP ackage8-PinSOT-23 Top View(1)G = Ground,I = Input,O = Output,P = PowerPin FunctionsPINTYPE(1)

4 DESCRIPTIONNAMESOT-23 UQFNCS63 ISPI chip select(activelow)DIN52 ISPI inputGND34 GGroundH81I/OHighterminalL78I/OLow terminalSCLK45 ISPI clockVDD27 PPositivesupplyvoltageW16I/OWipertermina l(1)StressesbeyondthoselistedunderAbsolu teMaximumRatingsmay causepermanentdamageto the stressratingsonly,whichdo not implyfunctionaloperationof the deviceat theseor any otherconditionsbeyondthoseindicatedunder RecommendedOperatingConditions. Exposureto absolute-maximum-ratedconditionsfor extendedperiodsmay affectdevicereliability.(2)The algebraicconvention,wherebythe mostnegativevalueis a minimumand the mostpositivevalueis a maximum(3)All voltagesare with respectto ground, (unlessotherwisenoted)(1)(2)(3)MINMAXUNI TS upplyvoltageVDDto GND , VL, VW + ,IH, IL, IW 20mAContinuouscurrent,IH, IL, IW( TPL0501 -100) 5mADigitalinputvoltage,VI ,Tj125 CStoragetemperature,Tstg 65150 C(1)JEDEC documentJEP155statesthat 500-VHBM allowssafe manufacturingwith a standardESDcontrolprocess.

5 (2)JEDEC documentJEP157statesthat 250-VCDM allowssafe manufacturingwith a (ESD)ElectrostaticdischargeHuman-bodymod el(HBM),per ANSI/ESDA/JEDECJS-001(1) 2000 VCharged-devicemodel(CDM),per JEDEC specificationJESD22-C101(2) 10004 TPL0501 SLIS136B SEPTEMBER2011 2011 2016,TexasInstrumentsIncorporated(1)For moreinformationabouttraditionaland new thermalmetrics,see theSemiconductorandICPackageThermalMetri csapplicationreport,SPRA953.(2)The packagethermalimpedanceis calculatedin accordancewith (1) TPL0501 UNITDCN(SOT-23)RSE(UQFN)8 PINS8 PINSR JAJunction-to-ambientthermalresistance(2 ) C/WR JC(top)Junction-to-case(top) C/WR C/W C/W C/WR JC(bot)Junction-to-case(bottom)thermalre sistance C/W(1)VH= VDD, VL= GND,VW= not loaded(2)MeasurementsbetweenWi and Li with Hi not connected,or betweenWi and Hi with Li not AnalogSpecificationsTypicalvaluesare specifiedat VDD= 5 V and operatingtemperatureis 25 C (unlessotherwisenoted).

6 PARAMETERTESTCONDITIONSMINTYPMAXUNITRTOT ALEnd-to-endresistanceBetweenHi and Li terminals80100120k VH, VLTerminalvoltage0 VDDVRH, RLTerminalresistance50150 RWWiperresistanceH terminalfloating,VL= GND,ForceIW= (VDD/2) / RTOTAL, inputcode= 0x80h25100 CH, CLTerminalcapacitancef = 1 MHz,measuredto GND,inputcode= 0x80h15pFCWW ipercapacitancef = 1 MHz,measuredto GND,inputcode= 0x80h12pFILKGT erminalleakagecurrentVH= GNDto VDD, VL= floatingorVL= GNDto VDD, VH= ATCRR esistancetemperaturecoefficient35ppm/ CVOLTAGEDIVIDERMODE(1)INLI ntegralnon-linearity 11 LSBDNLD ifferentialnon-linearity 2 at mid-scale4ppm/ CBWB andwidthWiperset at mid-scale( TPL0501 -100),CLOAD= 10 pF265kHzTSWW ipersettlingtimeTPL0501-1003 STHDT otalharmonicdistortionVH= 1 VRMSat 1 kHz,VL= VDD/2,measurementat (2)RINLI ntegralnon-linearity 11 LSBRDNLD ifferentialnon-linearity 0x00h,L floating,inputappliedto W,10 pF on SEPTEMBER2011 REVISEDMAY2016 SubmitDocumentationFeedbackCopyright 2011 2016,TexasInstrumentsIncorporated(1)

7 SCLK,DIN,CS OperatingSpecificationsTypicalvaluesare specifiedat VDD= 5 V and operatingtemperatureis 25 C (unlessotherwisenoted).PARAMETERTESTCOND ITIONSMINTYPMAXUNITIDD(STBY) AIIN-DIGD igitalpins leakagecurrentSCLK,DIN,CS inputs 11 AIDD(SUPPLY)VDDsupplycurrentDigitalinput = V, VDD= V5 ADigitalinput= V, VDD= 5 V500 SERIALINTERFACE(1)VIHI nputhigh voltageVDD= V to voltageSCLK,DIN,CS capacitanceSCLK,DIN,CS time20nstSCLSCLKlow time20nstDSDIN to SCLKset-uptime5nstDHDIN hold afterSCLK5nstCSSCS fall to SCLK rise setuptime15nstCSWCS (C)Resistance Change (%) (C)ZS Error (LSB) CodeRINL Error (LSB)+125C+85C+ CodeRDNL Error (LSB)

8 +125C+85C+ CodeINL Error (LSB)+125C+85C+ CodeDNL Error (LSB)+125C+85C+25C-40C6 TPL0501 SLIS136B SEPTEMBER2011 2011 2016, INL vs Tap Position(PotentiometerMode)Figure2. DNLvs Tap Position(PotentiometerMode)Figure3. INL vs Tap Position(RheostatMode)Figure4. DNLvs Tap Position(RheostatMode)Figure5. End-to-EndResistanceChangevs TemperatureFigure6. ZeroScaleErrorvs + + + + +07 Frequency (Hz)Magnitude (dB) CodeTC (ppm/C) + + + + +07 Frequency (Hz)Magnitude (dB) CodeTC (ppm/C) (C)FS Error (LSB) SEPTEMBER2011 REVISEDMAY2016 SubmitDocumentationFeedbackCopyright 2011 2016,TexasInstrumentsIncorporatedTypical Characteristics(continued)Figure7.

9 Full ScaleErrorvs TemperatureFigure8. TemperatureCoefficientvs Tap Position(PotentiometerMode)Figure9. TemperatureCoefficientvs Tap Position(RheostatMode)Figure10. Bandwidth(PotentiometerMode)Figure11. Bandwidth(RheostatMode)SPI INTERFACEWIPERREGISTERHALAWAVDDGNDSCLKDI NCSC opyright 2016, texas instruments Incorporated8 TPL0501 SLIS136B SEPTEMBER2011 2011 2016,TexasInstrumentsIncorporated7 a singlelinear-taperdigitalpotentiometerwi th256wiperpositionsandan end-to-endresistanceof 100 k . The potentiometercan be usedas a three-terminalpotentiometeror as a potentiometercan be usedin eithervoltagedividermodeor (H) and low (L) terminalsof the TPL0501are equivalentto the fixedterminalsof a H and L terminalsdo not haveany polarityrestrictions(H can be at a highervoltagethanL,or L can be at a highervoltagethanH).

10 The positionof the wiper(W) terminalis controlledby the valuein the8-bitWiperResistance(WR) WR registercontainsall zeroes(zero-scale),the wiperterminalis closestto its L the valueof the WR registerincreasesfromall zeroesto all ones(full-scale),thewipermovesfromthe positionclosestto the L terminal,to the positionclosestto the H the sametime,the resistancebetweenW and L increases,whereasthe resistancebetweenW and H ,256-PositionResolutionTheTPL0501feature sa capableof digitalpotentiometergeneratesa voltagedividerwhenall threeterminalsare voltagedivideratwiper-to-Hand wiper-to-Lis proportionalto the inputvoltageat H to L (seeFigure12).