Precision, Zero-Drift,High-Voltage, Programmable …

1 Gain 15 VVSNG0 G1 G2 G3 G43 VDVDDEFIN-PIN-N+15 VVSPVSOPVO-PVOCMVO-NPGA281 ADS1259 ADC+5 VVSON A1 A2 MARCH2013 REVISEDJUNE2013 Precision, Zero-Drift,High-Voltage, Progra mmableGainInstrumentationAmplifierCheckf orSamples:PGA2811 FEATURESDESCRIPTIONThePGA281isahigh-prec isioninstrumentation234 WideInputRange: at 18V Supplyamplifierwitha digitally-controllablegainandsignal- BinaryGainSteps:128V/Vto AdditionalScalingFactor:1 V/Vand1 V/Vautozeroingtechniquestoofferlowoffset voltage,near-zerooffsetandgaindrift,exce llentlinearity,and LowOffsetVoltage:5 V atG = 128nearlyno1/fnoise.

2 Near-ZeroLong-TermDriftofOffsetVoltageTh ePGA281isoptimizedtoprovideanexcellent Near- Ccommon-moderejectionofgreaterthan110dB( G= )overa ExcellentCMRR:140dBmodeandsupplyrejectio nsupportshigh-resolution, HighInputImpedancewide,high-impedanceinp utrangecomplywith VeryLow1/fNoiserequirementsforuniversals ignalmeasurement. DifferentialSignalOutputThePGA281offersm ultipleinternalgainoptionsfrom OverloadDetection V/V(attenuation)to176V/V,makingthisa TSSOP-16 Packageuniversal,high-performance,analog front-endsuitablefora ,rail-to-railoutputisdesignedtoeasilyAPP LICATIONS interfacea widerangeofinputsignalstothelow- High-PrecisionSignalInstrumentationvolta gedomainofhigh-resolutionanalog-to-digit al MultiplexedDataAcquisitionconverters(ADC s).

3 MedicalInstrumentationThePGA281isavailab leina TSSOP-16package TestandMeasurementEquipmentandis specifiedovera temperaturerangeof 40 C to+105 C. DifferentialorSingle-EndedADCD rivers StrainGaugeAmplifiersRELATEDPRODUCTS IndustrialProcessControlPRODUCTFEATURESA DS125923-bitresolution, analog-to-digitalconverterChopper-stabil izedinstrumentationamplifier,INA333 RRI/O,5-VsinglesupplyPGA204 High-precisionPGA;G = 1,10,100,and1000 Zero-Drift,36-V,PGA,SPI,GPIOs,inputswitc hPGA280matrix1 Pleasebeawarethatanimportantnoticeconcer ningavailability,standardwarranty,anduse in a a registeredtrademarkofBluetoothSIG, 2013, MARCH2013 (1)(1)Forthemostcurrentpackageandorderin ginformationseethePackageOptionAddenduma ttheendofthisdocument, (1)Overoperatingfree-airtemperaturerange , ,andVSONtoDVDD6 VSignalinputterminals,voltage(2)VSN + ,current(2) 10mAOutputshort-circuit(3)

4 ContinuousOperatingtemperature 55to+140 CStoragetemperature 65to+150 CJunctiontemperature+150 CElectrostaticdischarge(ESD)Humanbodymod el(HBM)2000 Vratings(1) ,andfunctionaloperationofthedeviceatthes eoranyotherconditionsbeyondthosespecifie dis notimplied.(2)Terminalsarediode-clampedt othepower-supply(VONandVOP) beyondthesupplyrailsmustbecurrent-limite d.(3)Short-circuittoVSONorVSOP,respectiv ely, (1)PW(TSSOP)UNITS16 PINS JCtopJunction-to-case(top) C/W JCbotJunction-to-case(bottom)thermalresi stanceN/A(1)Formoreinformationabouttradi tionalandnewthermalmetrics,seetheICPacka geThermalMetricsapplicationreport, 2013, MARCH2013 REVISEDJUNE2013 ELECTRICALCHARACTERISTICSAtTA= +25 C,VSP= +15V,VSN= 15V,VSON= 0 V,VSOP= 5 V,DVDD= +3V,RL= toVSOP/ 2 = VOCM,G = 1 V/V,VCM= 0 V,anddifferentialoutput, ,RTI(1)Allgains (5+ 45/G) (20+ 235/G)

5 V ( + ( +dVOS/dTvstemperature(2)Allgains V/ ) )VSP VSN= 10V and36V,PSRvspowersupply,RTI 3 V/Vgain= 1 V/V,128V/VLong-termstability(3)Gain= 128 (SE)anddifferential>1G InputcapacitanceSE12pFInputvoltagerangeT A= 40 C to+105 C(VSN)+ (VSP) 1 V/V,TA= 40 C to+105 C110130dBCMRC ommon-moderejection,RTIGain= 128V/V121142dBGain= 128V/V,TA= 40 C to+105 C116140dBSINGLE-ENDEDOUTPUTCONNECTION(4) Gain= 1 V/V, 120 VVOSO ffsetvoltage,RTI,SEGain= 64V/V 3 VGain= 1 V/V,TA= 40 C to+105 V/ CdVOS/dTvstemperature,SEGain= 64V/V,TA= 40 C to+105 V/ CINPUTBIASCURRENT(5)Gain= 1 V/V 1nAGain= 128V/V 2nAIBB iascurrentGain= 1 V/V,gain= 128V/V, 2nATA= 40 C to+105 CGain= 1 V/V,gain= 128V/V 1 V/V,gain= 128V/V, 2nATA= 40 C to+105 CNOISEf = ,gain= 128V/V420nVPPf = 1 kHz,gain= 128V/V22nV/ HzeNIVoltagenoise,RTI.

6 Targetf = ,gain= 1 VPPf = 1 kHz,gain= 1 V/V240nV/ Hzf = ,gain= 128 ,RTIf = 1 kHz,gain= 128V/V90fA/ Hz(1)RTI:Referredtoinput.(2)Specifiedbyd esign;notproductiontested.(3)300-hourlif etestat+150 C demonstratedrandomlydistributedvariation in therangeofmeasurementlimits.(4)Forsingle -ended(SE)outputmode,seeApplicationInfor mationsectionandTypicalCharacteristicgra phs;signalbetweenVOPandVOCM.(5) 2013,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback3 ProductFolderLinks:PGA281 PGA281 SBOS664A MARCH2013 (continued)AtTA= +25 C,VSP= +15V,VSN= 15V,VSON= 0 V,VSOP= 5 V,DVDD= +3V,RL= toVSOP/ 2 = VOCM,G = 1 V/V,VCM= 0 V,anddifferentialoutput, (OutputSwing= (6))Rangeofinputgain 128V/VOutputgain1 or1 V/VAllgains 40 C to+105 C,noload, 2ppm/ CGainerror,allbinarystepsexceptgain= 128V/V(7)(8)TA= 40 C to+105 C,noload,gain= 128-1 3ppm/ CV/V(7)(8)Gainstepmatching(9)(gaintoNolo ad,allgainsSeeTypicalCharacteristicsgain )Noload,allgains(10) ,allgains,TA= 40 C to+105 C(7)

7 3ppmOUTPUTVSOP= 5 V,loadcurrent2 mA40100mVTA= 40 C to+105 CVoltageoutputswingfromrail(9)VSOP= , 40 C to+105 CCapacitiveloaddrive500pFISCS hort-circuitcurrentToVSOP/ 2,gain= VOCMV oltagerangeforVOCMVSP 2 V > VOCM,TA= 40 C to+105 C(VSON)+ (VSOP) (VOCM)BiascurrentintoVOCM3100nAVOCM inputresistance1G FREQUENCYRESPONSEGBPG ainbandwidthproduct(9)Gain> 4 V/V6 MHzGain= 1 V/V,4-VPPoutputstep,CL= 100pF1V/ sGain= 8 V/V,4-VPPoutputstep,CL= 100pF2V/ sSRSlewrate(9)Gain= 128V/V,4-VPPoutputstep,CL= 1001V/ ,gain= 8 V/V,VO= 8-VPPstep20 ,gain= 8 V/V,VO= 8-VPPstep30 stSSettlingtime(9) ,gain= 128V/V,VO= 8-VPPstep30 ,gain= 128V/V,VO= 8-VPPstep40 sOverloadrecovery,input(9) oversupply,gain= V/Vto128V/V8 sOverloadrecovery,output(9) ,gain= 1 V/V6 s(6)Gainssmallerthan aremeasuredwithsmalleroutputswing.

8 (7)Specifiedbydesign;notproductiontested .(8)SeeFigure10fortypicalgainerrordrifto fvariousgainsettings.(9)SeeApplicationIn formationsectionandTypicalCharacteristic graphs.(10)Onlygain= 1 is 2013, MARCH2013 REVISEDJUNE2013 ELECTRICALCHARACTERISTICS(continued)AtTA = +25 C,VSP= +15V,VSN= 15V,VSON= 0 V,VSOP= 5 V,DVDD= +3V,RL= toVSOP/ 2 = VOCM,G = 1 V/V,VCM= 0 V,anddifferentialoutput, (Supply= ) (DVDD)VG4 (DVDD)DVDDVG4 ALogiclow, (EFpin)outputLogichigh,alarmDVDD disable(recovery)5 sErrorflag(EFpin)delayDisable alarm(response)30 sPOWERSUPPLY.

9 InputStage(VSP VSN)SpecifiedvoltagerangeTA= 40 C to+105 C10( 5)36( 18)VOperatingvoltagerange10( 5)38( 19)VIQ(VSP)Quiescentcurrent, VSPpinTA= 40 C to+105 (VSN)Quiescentcurrent,VSNpinTA= 40 C to+105 :OutputStage(VSOP VSON)SpecifiedvoltagerangeVSP VSOP,TA= 40 C to+105 ,upper(VSP 2 V)> VOCM,(VSP 5 V)> VSON(VSP)VlimitVoltagerangeforVSON(VSP 2 V)> VOCM,VSP VSOP(VSN)(VSP) 5 VIQ(VSOP)Quiescentcurrent,VSOPpinTA= 40 C to+105 :Digital(DVDD VSON)SpecifiedvoltagerangeTA= 40 C to+105 ,upper(VSP) 1 VlimitVoltagerangeforVSON,lower(VSN)Vlim itStaticcondition,noexternalload,DVDD= 3 V,IQ(DVDD)Quiescentcurrent(11) 40 C to+105 CTEMPERATURES pecifiedrange 40+105 COperatingrange 55+140 C(11) 2013,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback5 ProductFolderLinks.

10 PGA281 VSNINNINPVSPVSONVSOPVOCMDVDDEFG4G3G2G1G0 VONPGA28116151413121110912345678 VOPPGA281 SBOS664A MARCH2013 (TOPVIEW)PINDESCRIPTIONSPINPINNAMENUMBER DESCRIPTIONNAMENUMBERDESCRIPTIONDVDD1 DigitalsupplyINN15 Signalinput,invertingEF2 Errorflag(output)INP14 Signalinput,noninvertingNegativeoutput-s tagelow-voltageSignalinput,outputcommon- modeVSON12 VOCM10supplyandnegativedigitalsupplyvolt ageG07 Gainoption1 (seeTable1)VON8 InvertingsignaloutputG16 Gainoption2 (seeTable1)VOP9 NoninvertingsignaloutputG25 Gainoption3 (seeTable1)VSOP11 Positiveoutput-stagelow-voltagesupplyG34 Gainoption4 (seeTable1)VSN16 Negativehigh-voltagesupplyG43