DESCRIPTION 1FEATURES The OPA4872 offers a …

1 50W+5V50W523 WOPA695-5V+5V50W511W511 WOPA695-5V+5V50W453W149 WOPA695-5V+5V-5V+ 50 LoadWLogicIN0IN1IN2IN3A0 A1523W523 WSDEN2-Bit, High-Speed PGA, Greater Than 300 MHz Channel BandwidthG = 1V/VG = 2V/VG = 4V/VG = 8 JUNE2007 REVISEDMARCH20114:1 High-SpeedMultiplexerCheckforSamples:OPA 48721 FEATURESDESCRIPTIONTheOPA4872offersa verywideband4:1multiplexer2 ,the 500 MHz,2 VPPBANDWIDTHOPA4872providesauser-settabl eoutputamplifier (2 VPP).Theswitchingglitchisimproved 10nsCHANNELSWITCHINGTIME overearliersolutionsusinga new(patented)input 2300V/ s DIFFERENTIALGAIN,PHASE anoffisolationof88dBin eitherDisableorShutdown QUIESCENTCURRENT= gainof2,theOPA4872givesa 88dBOFFISOLATIONINDISABLEORS ystempowermaybeoptimizedusingthechipSHUT DOWN(10 MHz) (EN) VIDEOROUTER achievedbybringingtheshutdown(SD)linehig h.

2 LCDANDPLASMADISPLAYM uxingmultipleOPA4872soutputstogether,the n HIGHSPEEDPGA usingthechipenabletoselectwhichchannelsa reactive,increasesthenumberofpossibleinp uts. DROP-INUPGRADETOAD81741 Pleasebeawarethatanimportantnoticeconcer ningavailability,standardwarranty,anduse in 2007 2011, +OUTFBA0 GNDL ogicOPA4872 OPA4872 SBOS346C JUNE2007 (1)SPECIFIEDPACKAGETEMPERATUREPACKAGEORD ERINGTRANSPORTPRODUCTPACKAGE-LEADDESIGNA TORRANGEMARKINGNUMBERMEDIA,QUANTITYOPA48 72 IDRails,50 OPA4872SO-14D 40 C to+85 COPA4872 OPA4872 IDRT apeandReel,2500(1)Forthemostcurrentpacka geandorderinginformation,seethePackageOp tionAddendumattheendofthisdocument, (1)Overoperatingfree-airtemperaturerange , VSVS toragetemperaturerange 65to+125 CJunctiontemperature(TJ)+150 CJunctiontemperature.

3 Continuousoperation,long-termreliability +140 CHumanbodymodel(HBM)1300 VESD ratingChargeddevicemodel(CDM)1000 VMachinemodel(MM)200V(1) ,andfunctionaloperationofthedeviceatthes eoranyotherconditionsbeyondthosespecifie dis PACKAGESO-14(TOPVIEW)2 SubmitDocumentationFeedbackCopyright 2007 2011,TexasInstrumentsIncorporatedProduct FolderLink(s) JUNE2007 REVISEDMARCH2011 ELECTRICALCHARACTERISTICS:VS= 5 VAtTA= +25 C,G = +2V/V,RF= 523 , andRL= 150 , C to 40 C toMIN/TESTPARAMETERCONDITIONS+25 C+25 C(2)+70 C(3)+85 C(3)UNITSMAXLEVEL(1)ACPERFORMANCES mall-signalbandwidthVO= 500mVPP, RL= 150 500mVPP, RL= 150 120 MHztypCLarge-signalbandwidthVO= 2 VPP, RL= 150 500400370350 MHzminBSlewrate4 Vstep2300215020252000V/ = +2V/V,f = 10 MHz,VO= 2 VPP2nd-harmonicRL= 150 60 56 52 50dBcmaxB3rd-harmonicRL= 150 78 75 72 70dBcmaxBInputvoltagenoisef> HzmaxBNoninvertinginputcurrentnoisef> HzmaxBInvertinginputcurrentnoisef>100kHz 19222324pA/ HzmaxBDifferentialgainG = +2V/V,PAL,VO= = +2V/V,PAL,VO= typCAllhostilecrosstalk,input-referredTh reechannelsdrivenat5 MHz,1 VPP 80dBtypCThreechannelsdrivenat30 MHz,1 VPP 66dBtypCDCPERFORMANCEOpen-looptransimped ance(ZOL)

4 VO= 0V,RL= 100 103929086k minAInputoffsetvoltageVCM= 0V 1 5 0V 15 20 V/ CmaxBInputoffsetvoltagematchingVCM= 0V 1 5 6mVmaxANoninvertinginputbiascurrentVCM= 0V 4 14 AmaxAAveragenoninvertinginputbiascurrent VCM= 0V 15 20nA/ CmaxBInvertingbiascurrentVCM= 0V 4 18 AmaxAAverageinvertinginputbiascurrentVCM = 0V 75 75nA/ CmaxBINPUTC ommon-modeinputrange(CMIR)Eachnoninverti nginput (CMRR)VCM= 0V,input-referred, typCInvertingopenloop70 1k 4 150 0V 75 48 47 45mAminAShort-circuitoutputcurrentOutput shortedtoground 100mAtypCClosed-LoopoutputimpedanceG = +2V/V,f typC(1)Testlevels:(A)100%testedat+25 (B)Limitssetbycharacterizationandsimulat ion.

5 (C)Typicalvalueonlyforinformation.(2)Jun ctiontemperature= ambientfor+25 C testedspecifications.(3)Junctiontemperat ure= ambientatlowtemperaturelimit;junctiontem perature= ambient+9 C 2007 2011,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback3 ProductFolderLink(s): OPA4872 OPA4872 SBOS346C JUNE2007 :VS= 5V(continued)AtTA= +25 C,G = +2V/V,RF= 523 , andRL= 150 , C to 40 C toMIN/TESTPARAMETERCONDITIONS+25 C+25 C(2)+70 C(3)+85 C(3)UNITSMAXLEVEL(1)ENABLE(EN)Power-down supplycurrentVEN= = +2V/V,f = 10 MHz88dBtypCOutputresistancein disable14M typCOutputcapacitancein ,A1,EN, ,A1,EN, , A1,EN,SD,input= 0 Veachline32404550 AmaxAOutputswitchingglitchChannelselecti on,atmatchedload 20mVtypCChanneldisable,atmatchedload 40mVtypCShutdown,atmatchedload 40mVtypCSHUTDOWNS hutdownsupplycurrentVSD= = +2V/V,f = 10 MHz88dBtypCOutputresistancein shutdown14M typCOutputcapacitancein 5 VtypCMinimumoperatingvoltage (+PSRR)

6 Input-referred 56 50 49 48dBminAPower-supplyrejectionratio( PSRR)Input-referred 57 51 50 49dBminATHERMALCHARACTERISTICS 40toSpecifiedoperatingrange,D package CtypC+85 Thermalresistance, JAJunction-to-ambientDSO-1480 C/WtypC4 SubmitDocumentationFeedbackCopyright 2007 2011,TexasInstrumentsIncorporatedProduct FolderLink(s):OPA487276543210 Frequency (Hz)1M10M100M1 GGain (dB) Gain Flatness (dB)VOPP= 500mVR = 150 WLG = +2V/VBandwidthNormalizedFlatness630-3-6- 9-12 Frequency (Hz)1M10M100M2G1 GNormalized Gain (dB)G = +4V/VG = +1V/VG = +2V/VV = (10ns/div)Small-Signal Output Voltage (V) Output Voltage (V)R = 150 WLG = +2V/VLarge-Signal 4 VPPR ight ScaleSmall-Signal Scale76543210-1-2-3 Frequency (Hz)0200M400M600M800M1 GGain (dB)V = = 2 VOPPV = 4 VOPPV = 1 VOPP1009080706050403020100 Capacitive Load (pF)1101001000R)W(S876543210-1-2-3 Frequency (MHz)110100300 Gain to Capacitive Load (dB)RSCL1kW(1)VIVONOTE.

7 (1) = 10pFLC = 22pFLC = 47pFLC = 100pFL+ JUNE2007 REVISEDMARCH2011 TYPICALCHARACTERISTICSAtTA= +25 C,G = +2V/V,RF= 523 , andRL= 150 , 2007 2011,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback5 ProductFolderLink(s): OPA4872 -55-60-65-70 -75-80-85-90 Load Resistance ( )W1001kHarmonic Distortion (dBc)V = 2 VOPPf = 5 MHz2nd-Harmonic3rd-HarmonicdBc = dB Below Carrier-55-60-65-70-75-80-85-90-95 Supply Voltage ( V ) Distortion (dBc)2nd-HarmonicV = 2 VOPPR = 150 LWf = 5 MHz3rd-HarmonicdBc = dB Below Carrier-40-45-50-55-60-65-70-75-80-85-90 -95 Frequency (MHz)110100 Harmonic Distortion (dBc)V = 2 VOPPR = 150WL2nd-Harmonic3rd-HarmonicdBc = dB Below Carrier-50-55-60-65-70-75-80-85-90-95-10 0 Output Voltage Swing (V ) Distortion (dBc)R = 150 LWf = 5 MHz2nd-HarmonicdBc = dB Below Carrier3rd-Harmonic6543210-1-2-3-4-5 Output Current (mA)

8 -200-1000100200300 Output Voltage (V)1W InternalPower Limit1W InternalPower Limit100 LoadW50 LoadW25 LoadW-20-30-40-50-60-70-80-90-100-110 Frequency (Hz)1M10M100M1 GFeedthrough (dB)Input-referredShutdown FeedthroughDisable FeedthroughOPA4872 SBOS346C JUNE2007 (continued)AtTA= +25 C,G = +2V/V,RF= 523 , andRL= 150 , 2007 2011,TexasInstrumentsIncorporatedProduct FolderLink(s) (10ns/div)Output (V) Select (V)V= 200 MHz, 0 VIN_Ch1 DCOutput VoltageA07550250-25-50-75 Time (10ns/div)Output (mV) Select (V)At Matched (10ns/div)Output (V) Voltage (V)V= 200 MHz, (10ns/div)Output (mV) Voltage (V)At Matched (20ns/div)Output (V) Select (V)V= 200 MHz, (20ns/div)Output (mV) Voltage (V)SDAt Matched JUNE2007 REVISEDMARCH2011 TYPICALCHARACTERISTICS(continued)AtTA= +25 C,G = +2V/V,RF= 523 , andRL= 150 , 2007 2011,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback7 ProductFolderLink(s).

9 OPA48721M100k10k1k10010 Frequency (Hz)10k100k1M10M100M1 GTransimpedance ( )W0-45-90-135-180-225 Phase ( ) < ZOL ZOL0-10-20-30-40-50-60-70-80-90-100 Frequency (Hz)1M10M100M1 GCrosstalk (dB) (Hz)100k1M10M100M1 GOutput Impedance ( )WDisabled (or Shutdown)Enabled100M10M1M100k10k1k100 Frequency (Hz)10k100k1M10M100M1 GInput Impedance ( ) Temperature ( C) -50-250255075100125 Output Current (mA) Current (mA)Supply Current (I )Q+IOUT-IOUT6050403020100 Frequency (Hz)1k10k100k1M10M100M1 GPower-Supply Rejection Ratio (dB)-PSRR+PSRRI nput-referredOPA4872 SBOS346C JUNE2007 (continued)AtTA= +25 C,G = +2V/V,RF= 523 , andRL= 150 , 2007 2011,TexasInstrumentsIncorporatedProduct FolderLink(s) Temperature ( C) -50-250255075100125 Output Offset Voltage (mV)9876543210-1 Input Bias Current ( A)mVOSIbnIbi300100101 Frequency (Hz)101001k10k100k1M10 MVoltage Noise Density (nV/) HzCurrent Noise Density (pA/) HzInverting Input Current Noise (19pA/)Hz Input Voltage Noise ( ) HzNoninverting Input Current Noise (4pA/) JUNE2007 REVISEDMARCH2011 TYPICALCHARACTERISTICS(continued)AtTA= +25 C,G = +2V/V,RF= 523 , andRL= 150 , 2007 2011,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback9 ProductFolderLink(s).

10 OPA487275W+5V-5 VOPA487275W75W75W75 WTo 75 Fm+ Fm+ OPA4872 SBOS346C JUNE2007 ,WIDEBANDMULTIPLEXEROPERATION oneswitchis shownin ,gainof+2V/V,dualpower-supplycircuitused asthebasisofthe ,theinputimpedanceis setto75 with0000IN0a resistortogroundandtheoutputimpedanceis setto75 witha (indBm)are1100IN3definedatamatched75 ,IQ= , thetotaleffectiveloadwillbe150 ||XXX1 High-Z,IQ= = 131 . LogicpinsA0andA1controlwhichofthefourinp utsis selectedwhileENandSDallowTheOPA4872isind isablemode,witha ,whentheENpinissettoincludedinFigure27. disablemode,theOPA4872power-supplydecoup lingcapacitorstoground,ais , (PCB)layouts, , ,it isadvantageoustolookatit ,G = +2V/VBipolarSpecificationandTestCircuit( Channel0 Selected)10 SubmitDocumentationFeedbackCopyright 2007 2011,TexasInstrumentsIncorporatedProduct FolderLink(s).