OPA355规格书.pdf

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1、OPA355OPA2355OPA3355SBOS195D MARCH 2001 REVISED JANUARY DESCRIPTIONThe OPA355 series high-speed,voltage-feedback CMOSoperational amplifiers are designed for video and otherapplications requiring wide bandwidth.The OPA355 is unity-gain stable and can drive large output currents.In addition,the OPA355

2、 has a digital shutdown(Enable)function.Thisfeature provides power savings during idle periods andplaces the output in a high-impedance state to support outputmultiplexing.Differential gain is 0.02%and differential phaseis 0.05.Quiescent current is only 8.3mA per channel.The OPA355 is optimized for

3、operation on single or dualsupplies as low as 2.5V(1.25V)and up to 5.5V(2.75V).Common-mode input range for the OPA355 extends 100mVbelow ground and up to 1.5V from V+.The output swing iswithin 100mV of the rails,supporting wide dynamic range.The OPA355 series is available in single(SOT23-6 andSO-8),

4、dual(MSOP-10),and triple(TSSOP-14 and SO-14)versions.Multichannel versions feature completely indepen-dent circuitry for lowest crosstalk and freedom from interac-tion.All are specified over the extended 40C to+125Crange.FEATURESG UNITY-GAIN BANDWIDTH:450MHzG WIDE BANDWIDTH:200MHz GBWG HIGH SLEW RAT

5、E:360V/sG LOW NOISE:5.8nV/HzG EXCELLENT VIDEO PERFORMANCE:DIFF GAIN:0.02%,DIFF PHASE:0.050.1dB GAIN FLATNESS:75MHzG INPUT RANGE INCLUDES GROUNDG RAIL-TO-RAIL OUTPUT(within 100mV)G LOW INPUT BIAS CURRENT:3pAG LOW SHUTDOWN CURRENT:3.4AG ENABLE/DISABLE TIME:100ns/30nsG THERMAL SHUTDOWNG SINGLE-SUPPLY O

6、PERATING RANGE:2.5V to 5.5VGMicroSIZE PACKAGESPRODUCTION DATA information is current as of publication date.Products conform to specifications per the terms of Texas Instrumentsstandard warranty.Production processing does not necessarily includetesting of all parameters.Copyright 2001-2004,Texas Ins

7、truments Incorporated200MHz,CMOSOPERATIONAL AMPLIFIER WITH SHUTDOWNAPPLICATIONSG VIDEO PROCESSINGG ULTRASOUNDG OPTICAL NETWORKING,TUNABLE LASERSG PHOTODIODE TRANSIMPEDANCE AMPSG ACTIVE FILTERSG HIGH-SPEED INTEGRATORSG ANALOG-TO-DIGITAL(A/D)CONVERTERINPUT BUFFERSG DIGITAL-TO-ANALOG(D/A)CONVERTEROUTPU

8、T AMPLIFIERSG BARCODE SCANNERSG COMMUNICATIONSOPA3355OPA3355OPA355OPA2355OPA355 RELATED PRODUCTSFEATURESPRODUCT200MHz,Rail-to-Rail Output,CMOS,No ShutdownOPA35638MHz,Rail-to-Rail Input/Output,CMOSOPAx35075MHz,Rail-to-Rail OutputOPAx631150MHz,Rail-to-Rail OutputOPAx634Differential Input/Output,3.3V S

9、upplyTHS412xOPA355OutV+VEnableVIN+VINPlease be aware that an important notice concerning availability,standard warranty,and use in critical applications ofTexas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.All trademarks are the property of their r

10、espective owners.OPA355,2355,3355SBOS195DABSOLUTE MAXIMUM RATINGS(1)Supply Voltage,V+to V.7.5VSignal Input Terminals,Voltage(2).(V)0.5V to(V+)+0.5VCurrent(2).10mAEnable Input.(V)0.5V to(V+)+0.5VOutput Short-Circuit(3).ContinuousOperating Temperature.55C to+150CStorage Temperature.65C to+150CJunction

11、 Temperature.+160CLead Temperature(soldering,10s).+300CNOTES:(1)Stresses above these ratings may cause permanent damage.Exposure to absolute maximum conditions for extended periods may degradedevice reliability.These are stress ratings only,and functional operation of thedevice at these or any other

12、 conditions beyond those specified is not implied.(2)Input terminals are diode-clamped to the power-supply rails.Input signalsthat can swing more than 0.5V beyond the supply rails should be current limitedto 10mA or less.(3)Short-circuit to ground,one amplifier per package.ELECTROSTATICDISCHARGE SEN

13、SITIVITYThis integrated circuit can be damaged by ESD.Texas Instru-ments recommends that all integrated circuits be handled withappropriate precautions.Failure to observe proper handlingand installation procedures can cause damage.ESD damage can range from subtle performance degrada-tion to complete

14、 device failure.Precision integrated circuitsmay be more susceptible to damage because very smallparametric changes could cause the device not to meet itspublished specifications.PIN CONFIGURATIONSTop View123654V+EnableInOutV+InOPA355SOT23-6(1)C5512348765EnableV+OutNC(2)NC(2)In+InVOPA355SO-812345109

15、876V+Out BIn B+In BEnable BOut AIn A+In AVEnable AOPA2355MSOP-10AB1234567141312111098Out CIn C+In CV+In BIn BOut BEnable AEnable BEnable CV+In AIn AOut AOPA3355SO-14TSSOP-14ABCPACKAGEPRODUCTPACKAGE-LEADMARKINGOPA355SOT23-6C55OPA355SO-8OPA355UAOPA2355MSOP-10D55OPA3355TSSOP-14OPA3355EAOPA3355SO-14OPA3

16、355UANOTE:(1)For the most current package and ordering information,see thePackage Option Addendum located at the end of this data sheet.PACKAGE/ORDERING INFORMATION(1)NOTES:(1)Pin 1 of the SOT23-6 isdetermined by orienting the package markingas indicated in the diagram.(2)NC indicatesno internal con

17、nection.OPA355,2355,3355SBOS195DELECTRICAL CHARACTERISTICS:VS=+2.7V to+5.5V Single-SupplyBoldface limits apply over the specified temperature range,TA=40C to+125C.At TA=+25C,RF=604,RL=150,and connected to VS/2,unless otherwise noted.OPA355OPA2355OPA3355PARAMETERCONDITIONMINTYPMAXUNITSOFFSET VOLTAGEI

18、nput Offset VoltageVOSVS=+5V29mVSpecified Temperature Range15mVvs TemperaturedVOS/dTSpecified Temperature Range7V/Cvs Power SupplyPSRR VS=+2.7V to+5.5V,VCM=VS/2 0.15V80350V/VINPUT BIAS CURRENTInput Bias CurrentIB350pAInput Offset CurrentIOS150pANOISEInput Noise Voltage Densityenf=1MHz5.8nV/HzCurrent

19、 Noise Densityinf=1MHz50fA/HzINPUT VOLTAGE RANGECommon-Mode Voltage RangeVCM(V)0.1(V+)1.5VCommon-Mode Rejection RatioCMRRVS=+5.5V,0.1V VCM +4.0V6680dBSpecified Temperature Range66dBINPUT IMPEDANCEDifferential1013|1.5|pFCommon-Mode1013|1.5|pFOPEN-LOOP GAINVS=+5V,0.3V VO 4.7V8492dBOPA355VS=+5V,0.3V VO

20、 4.7V80dBOPA2355,OPA3355VS=+5V,0.4V VO 84dB0.20.3VVoltage Output Swing from RailVS=+5V,RL=1k0.1VOutput Current,Continuous(1)IO60mAOutput Current,Peak(1)IOVS=+5V100mAOutput Current,Peak(1)IOVS=+3V80mAClosed-Loop Output Impedancef 100kHz0.02POWER SUPPLYSpecified Voltage RangeVS2.75.5VOperating Voltage

21、 Range2.5 to 5.5VQuiescent Current(per amplifier)IQVS=+5V,Enabled,IO=08.311mASpecified Temperature Range14mANOTES:(1)See typical characteristic Output Voltage Swing vs Output Current.(2)Logic LOW and HIGH levels are CMOS logic compatible.They are referenced to V.OPA355,2355,3355SBOS195DSHUTDOWNDisab

22、led(Logic-LOW Threshold)(2)0.8VEnabled(Logic-HIGH Threshold)(2)2VEnable Time100nsDisable Time30nsShutdown Current(per amplifier)VS=+5V,Disabled3.46ATHERMAL SHUTDOWNJunction TemperatureShutdown160CReset from Shutdown140CTEMPERATURE RANGESpecified Range40125COperating Range55150CStorage Range65150CThe

23、rmal ResistanceJAC/WSOT-23-6,MSOP-10150C/WSO-8125C/WSO-14,TSSOP-14100C/WNOTES:(1)See typical characteristic Output Voltage Swing vs Output Current.(2)Logic LOW and HIGH levels are CMOS logic compatible.They are referenced to V.ELECTRICAL CHARACTERISTICS:VS=+2.7V to+5.5V Single-Supply(Cont.)Boldface

24、limits apply over the specified temperature range,TA=40C to+125C.At TA=+25C,RF=604,RL=150,and connected to VS/2,unless otherwise noted.OPA355OPA2355OPA3355PARAMETERCONDITIONMINTYPMAXUNITSOPA355,2355,3355SBOS195DTYPICAL CHARACTERISTICSAt TA=+25C,VS=5V,G=+2,RF=604,and RL=150 connected to VS/2,unless o

25、therwise noted.NONINVERTING SMALL-SIGNAL FREQUENCY RESPONSEFrequency(Hz)Normalized Gain(dB)10M1M100M1G100k6303691215VO=0.1Vp-pG=+2G=+5G=+10G=+1RF=0INVERTING SMALL-SIGNAL FREQUENCY RESPONSEFrequency(Hz)Normalized Gain(dB)10M1M100M1G100k303691215VO=0.1Vp-pG=1G=5G=10G=2NON-INVERTING SMALL-SIGNAL STEP R

26、ESPONSETime(20ns/div)Output Voltage(50mV/div)G=+2NONINVERTING LARGE-SIGNAL STEP RESPONSETime(20ns/div)Output Voltage(500mV/div)G=+2LARGE-SIGNAL DISABLE/ENABLE RESPONSETime(200ns/div)Output Voltage(500mV/div)4.53.52.51.50.5Disable Voltage(V)EnabledDisabledVOUTfIN=5MHz0.1dB GAIN FLATNESS FOR VARIOUS R

27、FFrequency(MHz)Normalized Gain(dB)1010010.50.40.30.20.100.10.20.30.40.5VO=0.1Vp-pCL=0pFRF=604RF=560RF=500OPA355,2355,3355SBOS195DTYPICAL CHARACTERISTICS(Cont.)At TA=+25C,VS=5V,G=+2,RF=604,and RL=150 connected to VS/2,unless otherwise noted.HARMONIC DISTORTION vs OUTPUT VOLTAGEOutput Voltage(Vp-p)Har

28、monic Distortion(dBc)234015060708090100RL=200f=1MHz2nd Harmonic3rd HarmonicHARMONIC DISTORTION vs NONINVERTING GAINGain(V/V)Harmonic Distortion(dBc)10150607080901002nd-Harmonic3rd-HarmonicVO=2Vp-pf=1MHzRL=200HARMONIC DISTORTION vs INVERTING GAINGain(V/V)Harmonic Distortion(dBc)10150607080901002nd-Ha

29、rmonic3rd-HarmonicVO=2Vp-pf=1MHzRL=200HARMONIC DISTORTION vs FREQUENCYFrequency(Hz)Harmonic Distortion(dBc)10M100k1M50607080901002nd-Harmonic3rd-HarmonicVO=2Vp-pRL=200HARMONIC DISTORTION vs LOAD RESISTANCERL()Harmonic Distortion(dBc)1k10050607080901002nd-Harmonic3rd-HarmonicVO=2Vp-pf=1MHzINPUT VOLTA

30、GE AND CURRENT NOISE SPECTRAL DENSITY vs FREQUENCYFrequency(Hz)Voltage Noise(nV/Hz),Current Noise(fA/Hz)100M101001k10k100k1M10M10k1k100101Current NoiseVoltage NoiseOPA355,2355,3355SBOS195DTYPICAL CHARACTERISTICS(Cont.)At TA=+25C,VS=5V,G=+2,RF=604,and RL=150 connected to VS/2,unless otherwise noted.F

31、REQUENCY RESPONSE FOR VARIOUS RLFrequency(Hz)Normalized Gain(dB)10M1M100M1G100k303691215RL=50RL=150RL=1kRL=10kCL=0pFVO=0.1Vp-pFREQUENCY RESPONSE FOR VARIOUS CLFrequency(Hz)Normalized Gain(dB)10M1M100M1G100k96303691215RS=0VO=0.1Vp-pCL=100pFCL=47pFCL=5.6pFRECOMMENDED RS vs CAPACITIVE LOADCapacitive Lo

32、ad(pF)RS()101001120100806040200OPA355CLRSVINVO1k604604(1k is Optional)FREQUENCY RESPONSE vs CAPACITIVE LOADFrequency(Hz)Normalized Gain(dB)10M100M1G1M303691215CL=100pFRS=24CL=47pFRS=36CL=5.6pFRS=80OPA355CLRSVINVO1k604604(1k is Optional)G=+2VO=0.1Vp-pFrequency(Hz)10M100M100k1M1G10k1009080706050403020

33、100PSRR+PSRRCMRRCOMMON-MODE REJECTION RATIO AND POWER-SUPPLY REJECTION RATIO vs FREQUENCYCMRR,PSRR(dB)OPEN-LOOP GAIN AND PHASEFrequency(Hz)Open-Loop Gain(dB)Open-Loop Phase(degrees)10M100M100k1M1G1k10k18016014012010080604020020GainPhaseRL=1kRL=150kOPA355,2355,3355SBOS195DTYPICAL CHARACTERISTICS(Cont

34、.)At TA=+25C,VS=5V,G=+2,RF=604,and RL=150 connected to VS/2,unless otherwise noted.SHUTDOWN CURRENT vs TEMPERATURETemperature(C)Shutdown Current(A)6585105525451351255535154.54.03.53.02.52.01.51.00.50VS=5VVS=3VVS=5.5VVS=2.5VOUTPUT VOLTAGE SWING vs OUTPUT CURRENTFOR VS=5VOutput Current(mA)Output Volta

35、ge(V)100501502002500543210125C125C25C25C55C55CContinuous currents above60mA are not recommended.SUPPLY CURRENT vs TEMPERATURETemperature(C)Supply Current(mA)65851055254513512555351514121086420VS=5VVS=3VVS=5.5VVS=2.5VOUTPUT VOLTAGE SWING vs OUTPUT CURRENTFOR VS=3VOutput Current(mA)Output Voltage(V)60

36、309012015003210125C125C25C25C55C55CContinuous currents above60mA are not recommended.INPUT BIAS CURRENT vs TEMPERATURETemperature(C)Input Bias Current(pA)65851055254513512555351510n1n100101COMPOSITE VIDEODIFFERENTIAL GAIN AND PHASENumber of 150 LoadsdG/dP(%/degrees)32410.400.350.300.250.200.150.100.

37、050dPdGOPA355,2355,3355SBOS195DTYPICAL CHARACTERISTICS(Cont.)At TA=+25C,VS=5V,G=+2,RF=604,and RL=150 connected to VS/2,unless otherwise noted.COMMON-MODE REJECTION RATIO AND POWER-SUPPLY REJECTION RATIO vs TEMPERATURETemperature(C)CMRR,PSRR(dB)6585105525451351255535151009080706050Power-Supply Reject

38、ion RatioCommon-Mode Rejection RatioOFFSET VOLTAGE PRODUCTION DISTRIBUTIONOffset Voltage(mV)Percent of Amplifiers(%)67895 4 3 2 1 0 12 345 678 920181614121086420OPEN-LOOP GAIN vs TEMPERATURETemperature(C)Open-Loop Gain(dB)65851055254513512555351511010090807060RL=1kRL=150OUTPUT SETTLING TIME TO 0.1%T

39、ime(ns)Output Error(%)253040453510515205000.20.100.10.20.30.4VO=2Vp-pMAXIMUM OUTPUT VOLTAGE vs FREQUENCYFrequency(MHz)Output Voltage(Vp-p)1010016543210VS=5.5VVS=2.7VMaximum Output Voltage withoutSlew-Rate Induced DistortionCLOSED-LOOP OUTPUT IMPEDANCE vs FREQUENCYFrequency(Hz)Output Impedance()10M10

40、0M1M1G10k100k1001010.10.010.001OPA355604604ZOOPA355,2355,3355SBOS195DAPPLICATIONS INFORMATIONThe OPA355 series is a CMOS,high-speed,voltage-feed-back,operational amplifier designed for video and othergeneral-purpose applications.It is available as a single,dual,or triple op amp.The amplifier feature

41、s a 200MHz gain bandwidth and360V/s slew rate,but it is unity-gain stable and can beoperated as a+1V/V voltage follower.Its input common-mode voltage range includes ground,al-lowing the OPA355 to be used in virtually any single-supplyapplication up to a supply voltage of+5.5V.PCB LAYOUTGood high-fre

42、quency PC board layout techniques should beemployed for the OPA355.Generous use of ground planes,short direct signal traces,and a suitable bypass capacitorlocated at the V+pin will assure clean,stable operation.Large areas of copper also provide a means of dissipatingheat that is generated within th

43、e amplifier in normal opera-tion.Sockets are definitely not recommended for use with anyhigh-speed amplifier.A 10nF ceramic bypass capacitor is the minimum recom-mended value;adding a 1F or larger tantalum capacitor inTYPICAL CHARACTERISTICS(Cont.)At TA=+25C,VS=5V,G=+2,RF=604,and RL=150 connected to

44、 VS/2,unless otherwise noted.CHANNEL-TO-CHANNEL CROSSTALKFrequency(Hz)Crosstalk,Input-Referred(dB)10M1M100M100k020406080100120OPA3355(triple)OPA2355(dual)parallel can be beneficial when driving a low-resistance load.Providing adequate bypass capacitance is essential to achiev-ing very low harmonic a

45、nd intermodulation distortion.OPERATING VOLTAGEThe OPA355 is specified over a power-supply range of+2.7Vto+5.5V(1.35V to 2.75V).However,the supply voltagemay range from+2.5V to+5.5V(1.25V to 2.75V).Supplyvoltages higher than 7.5V(absolute maximum)can perma-nently damage the amplifier.Parameters that

46、 vary significantly over supply voltage ortemperature are shown in the Typical Characteristics sectionof this data sheet.ENABLE FUNCTIONThe OPA355 can be enabled by applying a TTL HIGHvoltage level to the Enable pin.Conversely,a TTL LOWvoltage level will disable the amplifier,reducing its supplycurr

47、ent from 8.3mA to only 3.4A per amplifier.This pinvoltage is referenced to single-supply ground.When using asplit-supply,such as 2.5V,the enable/disable voltage levelswill be referenced to V.Independent Enable pins areavailable for each channel,providing maximum design flex-ibility.For portable batt

48、ery-operated applications,this featurecan be used to greatly reduce the average current andthereby extend battery life.OPA355,2355,3355SBOS195DThe Enable input can be modeled as a CMOS input gate witha 100k pull-up resistor to V+.Left open,the Enable pin willassume a logic HIGH,and the amplifier wil

49、l be on.The Enable time is 100ns and the disable time is only 30ns.This allows the OPA355 to be operated as a“gated”amplifier,or to have its output multiplexed onto a common output bus.When disabled,the output assumes a high-impedance state.OUTPUT DRIVEThe output stage can supply high short-circuit

50、current(typi-cally over 200mA).Therefore,an on-chip thermal shutdowncircuit is provided to protect the OPA355 from dangerouslyhigh junction temperatures.At 160C,the protection circuitwill shut down the amplifier.Normal operation will resumewhen the junction temperature cools to below 140C.NOTE:it is