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1 12348765V+Out B In B+In BOut A In A+In AV ABD PACKAGE(TOP VIEW) MARCH2012 REVISEDNOVEMBER2012 HIGHPRECISION,LOWNOISEOPERATIONALAMPLIFI ERC heckforSamples: opa2227 -EP1 FEATURES LowNoise:3 nV/ HzSUPPORTSDEFENSE,AEROSPACE,ANDMEDICALAP PLICATIONS WideBandwidth:8 MHz, s ControlledBaseline SettlingTime:5 s OneAssemblyandTestSite HighCMRR:138dB(Typical) OneFabricationSite HighOpen-LoopGain:160dB(Typical) AvailableinMilitary( 55 C to125 C) LowInputBiasCurrent:10nAMaximumatTempera tureRange(1)25 C ExtendedProductLifeCycle LowOffsetVoltage:100 V Maximumat25 C ExtendedProduct-ChangeNotification WideSupplyRange: to 18V ProductTraceabilityAPPLICATIONS DataAcquisition TelecomEquipment GeophysicalAnalysis VibrationAnalysis SpectralAnalysis ProfessionalAudioEquipment ActiveFilters PowerSupplyControl(1)Additionaltemperatu rerangesavailable- contactfactoryDESCRIPTIONTheOPA2227opera tionalamplifiercombineslownoiseandwideba ndwidthwithhighprecisiontomakeit unity-gainstableandfeatureshighslewrate( s)andwidebandwidth(8 MHz).

2 TheOPA2227operationalamplifieris , a availablein specifiedfrom 55 C to125 ,standardwarranty,andusein 2012, MARCH2012 (1)ORDERABLEPARTTAPACKAGETOP-SIDEMARKING VIDNUMBERTRANSPORTMEDIANUMBEROPA2227 MDREPV62/12610-01 XETapeandReel,large 55 C toSOIC-8 D2227EP125 COPA2227 MDEPV62/12610-01XE-TTube(1)Forthemostcur rentpackageandorderinginformation,seethe PackageOptionAddendumattheendofthisdocum ent, (1)overoperatingfree-airtemperaturerange (unlessotherwisenoted)VALUEUNITS upplyvoltage 18 VSignalinputterminalsVoltage(V ) (V+)+ (toground)(2)ContinuousOperatingtemperat ure-55to125 CStoragetemperature-65to150 CJunctiontemperature150 CLeadtemperature(soldering,10s)300 C(1)Stressesbeyondthoselistedunder"absol utemaximumratings" ,andfunctionaloperationofthedeviceatthes eoranyotherconditionsbeyondthoseindicate dunder"recommendedoperatingconditions" is (2) (1)DUNITS8 PINS JAJunction-to-ambientthermalresistance(2 ) JCtopJunction-to-case(top)thermalresista nce(3) JBJunction-to-boardthermalresistance(4) C/W JTJunction-to-topcharacterizationparamet er(5) JBJunction-to-boardcharacterizationparam eter(6) JCbotJunction-to-case(bottom)thermalresi stance(7)N/A(1)Formoreinformationabouttr aditionalandnewthermalmetrics,seetheICPa ckageThermalMetricsapplicationreport,SPR A953.

3 (2)Thejunction-to-ambientthermalresistan ceundernaturalconvectionis obtainedin a simulationona JEDEC-standard, high -Kboard,asspecifiedin JESD51-7,in anenvironmentdescribedin JESD51-2a.(3)Thejunction-to-case(top)the rmalresistanceis obtainedbysimulatinga ,buta closedescriptioncanbefoundin theANSISEMI standardG30-88.(4)Thejunction-to-boardth ermalresistanceis obtainedbysimulatingin anenvironmentwitha ringcoldplatefixturetocontrolthePCBtempe rature,asdescribedin JESD51-8.(5)Thejunction-to-topcharacteri zationparameter, JT, estimatesthejunctiontemperatureofa devicein a realsystemandis extractedfromthesimulationdataforobtaini ng JA, usinga proceduredescribedin JESD51-2a(sections6 and7).(6)Thejunction-to-boardcharacteriz ationparameter, JB, estimatesthejunctiontemperatureofa devicein a realsystemandis extractedfromthesimulationdataforobtaini ng JA, usinga proceduredescribedin JESD51-2a(sections6 and7).

4 (7)Thejunction-to-case(bottom)thermalres istanceis obtainedbysimulatinga coldplatetestontheexposed(power) ,buta closedescriptioncanbefoundin 2012, MARCH2012 REVISEDNOVEMBER2012 ELECTRICALCHARACTERISTICSAtTA= 25 C,VS= 5 V to 15V,RL= 10k (unlessotherwisenoted).PARAMETERTESTCOND ITIONSMINTYPMAXUNITOFFSETVOLTAGEI nputoffsetvoltage(VOS) 5 100 VvsTemperature,TA= -55 C to125 C 10 250 VvsTemperature(dVOS/dT),TA= -55 C to125 C V/ CvsPowersupply(PSRR)TA= -55 C to125 CVS= to 18V V/VChannelseparation(dual)f = 1 kHz,RL= 5 k 110dBINPUTBIASCURRENTI nputbiascurrent(IB) 10nATA= -55 C to125 CSeeTypicalCharacteristicsInputoffsetcur rent(IOS) 10nATA= -55 C to125 CSeeTypicalCharacteristicsNOISEI nputvoltagenoise,f = (en)f = Hzf = 100Hz3nV/ Hzf = 1 kHz3nV/ HzCurrentnoisedensity(in), f = 1 HzINPUTVOLTAGERANGEC ommon-modevoltagerange(VCM)(V-)+ 2(V+) 2 VTA= -55 C to125 CCommon-moderejection(CMRR)VCM= (V ) + 2 V to(V+)

5 2 V120138dBTA= -55 C to125 C108138dBINPUTIMPEDANCED ifferentialOpen-loopvoltagegain(AOL) || pF107|| 12 Common-modeVCM= (V ) + 2 V to(V+) 2 V || pF109|| 3 OPEN-LOOPGAINOpen-loopvoltagegain(AOL)VO = (V ) + 2 V to(V+) 2 V,RL= 10k 132160TA= -55 C to125 C112160dBVO= (V ) + to(V+) ,RL= 600 132160TA= -55 C to125 C112160 FREQUENCYRESPONSEG ainbandwidthproduct(GBW)8 MHzSlewrate(SR) = 1,10-VStep,CL= 100pF5 = 1,10-VStep,CL= sOverloadrecoverytimeVINx G = sTotalharmonicdistortion+ NOISE (THD+N)f = 1 kHz,G = 1,VO= -55 C to125 CRL= 10k (V-)+ 2(V+) 2 VTA= -55 C to125 CRL= 600 (V-)+ (V+) (ISC) 45mACapacitiveloaddrive(CLOAD)SeeTypical CharacteristicsPOWERSUPPLYS pecifiedvoltagerange(VS) 5 15 VOperatingvoltagerange 18 VQuiescentcurrent(peramplifier)(IQ)IO= 0 A 2012,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback3 ProductFolderLinks: opa2227 -EP10001000010 00001000000125130135140145150 Estimated Life (Hours)Continuous TJ( C) opa2227 -EPSBOS594A MARCH2012 (continued)AtTA= 25 C,VS= 5 V to 15V,RL= 10k (unlessotherwisenoted).

6 PARAMETERTESTCONDITIONSMINTYPMAXUNITTA= -55 C to125 CIO= 0 A 55125 COperatingtemperaturerange 55125 CStoragetemperaturerange 65150 10yearsat105 C junctiontemperature(doesnotincludepackag einterconnectlife). 2012,TexasInstrumentsIncorporatedProduct FolderLinks: opa2227 -EP201001k10k + NOISE (%)Frequency (Hz)TOTAL HARMONIC DISTORTION + NOISEvs FREQUENCYG = 1, RL= 10k VOUT= 100k 1M 10M 100M180160140120100806040200 20 AOL(dB)0 20 40 60 80 100 120 140 160 180 200 Phase ( )Frequency (Hz)OPEN-LOOP GAIN/PHASE vs FREQUENCYG 0 PSRR, CMRR (dB)Frequency (Hz)POWER SUPPLY AND COMMON-MODEREJECTION RATIO vs FREQUENCY+CMRR+PSRR NOISE (nV/ Hz)Current NOISE (fA/ Hz)Frequency (Hz)INPUT VOLTAGE AND CURRENT NOISESPECTRAL DENSITY vs FREQUENCYC urrent NoiseVoltage Noise101001k10k100k1M140120100806040 Channel Separation (dB)Frequency (Hz)CHANNEL SEPARATION vs FREQUENCYDual and quad devices.

7 G = 1, all measured Channel A to D, or B to C;other combinations yield similiar or NOISE VOLTAGE vs TIME1s/div50 MARCH2012 REVISEDNOVEMBER2012 TYPICALCHARACTERISTICSAtTA= 25 C,RL= 10k , VS= 15V (unlessotherwisenoted).Copyright 2012,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback5 ProductFolderLinks: opa2227 -EP1086420 2 4 6 8 10 Offset Voltage Change ( V)0100150300 Time from Power Supply Turn-On (s)WARM-UP OFFSET VOLTAGE DRIFT50200250 VOLTAGE NOISE DISTRIBUTION (10Hz)Percent of Units (%) NOISE (nV/ Hz) BIAS CURRENT vs TEMPERATURE 75 50 2502550751001251601501401301201101009080 7060 AOL, CMRR, PSRR (dB)Temperature ( C)AOL, CMRR, PSRR vs TEMPERATURECMRRPSRRAOL 75 50 2502550751001256050403020100 Short-Circuit Current (mA)Temperature ( C)SHORT-CIRCUIT CURRENT vs TEMPERATURE+ISC ISC 50 40 30 20 10010203040 60 40 20020406080100 120 140 Temperature ( C)Input Bias Current (nA) 2 10123456 60 40 20020406080100 120 140 Temperature ( C)

8 Input Offset Current (nA)INPUT OFFSET CURRENT vs TEMPERATUREOPA2227-EPSBOS594A MARCH2012 (continued)AtTA= 25 C,RL= 10k , VS= 15V (unlessotherwisenoted).6 SubmitDocumentationFeedbackCopyright 2012,TexasInstrumentsIncorporatedProduct FolderLinks: opa2227 -EPQUIESCENT CURRENT vs SUPPLY VOLTAGE20 Supply Voltage ( V) Current (mA)SLEW RATE vs TEMPERATURE125 Temperature ( C) 75 50 Rate ( V/V)Negative Slew RateRLOAD= 2k CLOAD= 100pFPositive Slew IB(nA)0510152025303540 Supply Voltage (V)CHANGE IN INPUT BIAS CURRENTvs POWER SUPPLY VOLTAGEC urve shows normalized change in bias currentwith respect to VS= 10V. Typical IBmay rangefrom 2nA to +2nA at VS= IN INPUT BIAS CURRENTvs COMMON-MODE VOLTAGE15 Common-Mode Voltage (V) 15 10 IB(nA)VS= 15 VVS= 5 VCurve shows normalized change in bias currentwith respect to VCM= 0V.

9 Typical IBmay rangefrom 2nA to +2nA at VCM= Time ( s) 1 10 100 Gain (V/V)SETTLING TIME vs CLOSED-LOOP 15V, 10V StepCL= 1500pFRL= 2k QUIESCENT CURRENT vs TEMPERATURE100 120 140 Temperature ( C) 60 40 Current (mA) 10V 5V 18V 15V MARCH2012 REVISEDNOVEMBER2012 TYPICALCHARACTERISTICS(continued)AtTA= 25 C,RL= 10k , VS= 15V (unlessotherwisenoted).Copyright 2012,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback7 ProductFolderLinks: opa2227 -EPSMALL-SIGNA L OVERSHOOTvs LOAD CAPACITANCE1k10010110k100kLoad Capacitance (pF)706050403020100 Overshoot (%)Gain = 10 Gain = +10 Gain = +1 Gain = 1 MAXIMUM OUTPUT VOLTAGE vs FREQUENCY10 MFrequency (Hz)1k10k100k1M302520151050 Output Voltage (Vp-p)VS= 15 VVS= 5 VLARGE-SIGNAL STEP RESPONSEG = 1, CL= 1500pF5 s/div2V/divSMALL-SIGNAL STEP RESPONSEG = +1, CL= 1000pF400ns/div25mV/divSMALL-SIGNAL STEP RESPONSEG = +1, CL= 5pF400ns/div25mV/divOUTPUT VOLTAGE SWING vs OUTPUT CURRENT151413121110 10 11 12 13 14 15V+(V+) 1V(V+) 2V(V+) 3V(V ) +3V(V ) +2V(V ) +1VV 0102030405060 Output Current (mA)Output Voltage Swing (V)

10 55 C 40 C 55 C85 C25 C85 C25 C 40 C125 C125 COPA2227-EPSBOS594A MARCH2012 (continued)AtTA= 25 C,RL= 10k , VS= 15V (unlessotherwisenoted).8 SubmitDocumentationFeedbackCopyright 2012,TexasInstrumentsIncorporatedProduct FolderLinks: opa2227 -EPOPA2227 OutputRF500 Input + MARCH2012 REVISEDNOVEMBER2012 APPLICATIONINFORMATIONB asicConnectionTheOPA2227is a is unity-gainstablewitha , F , : Keepthermalmassoftheconnectionsmadetothe twoinputterminalssimilar. Locateheatsourcesasfaraspossiblefromthec riticalinputcircuitry. ,theOPA2227isspecifiedforreal-worldappli cations;a singlesetofspecificationsappliesoverthe 5-Vto 5-Vand V betweenthesuppliesandwithupto36V ,thepositivesupplycouldbesetto25V withthenegativesupplyat 5 V ,keyparametersareassuredoverthespecified temperaturerange, 55 Cto125 (seeFigure2) ,asina pulsecondition,cancausecurrenttoflowthro ughtheinputprotectiondiodesduetotheampli fier s , ,importantparameterssuchasinputoffsetvol tage,drift, unity-gainbuffer(follower), feedbackresistorora :RX= VS/20mA- RSOURCE(1)Copyright 2012,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback9 ProductFolderLinks.