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,.ANALOG W DEVICES IntegratedCircuit HighSpeedOperationalAmplifier 505

FEATURES

High Slew Rate: 120V/p.secmin FastSettlingTime: 0.1% in800nsec 0.01% in2p.sec Low Ib: 25nA max (K) Low Vos: 2.5mV max (K) Low Vos Drift:15p.vfc max (K) Drives1000pF Low Price:$10.00 (100's,J) APPLICA TIONS DIA and AID Conversion Wideband Amplifiers Active Filters PulseAmplifiers Fast MultiplierPre-Amps PRODUCT DESCRIPTION The Analog DevicesADSOS), ADSOSK and ADSOSS are monolithicoperationalamplifiersthatarespecificallydesigned forapplicationsrequiringhigh slew rateand fastsettlingtime to high accuracy. The ADSOS achievesa minimum slew rate of 120V/l1sec,providesan adjustableunitygain bandwidth product of 4MHz to 10MHz, and settlesto 0.1% in 800nsec. In additionto itssuperiordynamic characteristics,the ADSOS maintainshigh gain,maximum offsetvoltagedriftof lSp.V/C, maximum biascurrentsof 2SnA and high output swing. The circuithas a stable6dB/octave rollofffor closedloop operation.Itisalsocapableof beingexternallyadjustedfor up to 3SdB of additionalclosedloop gain athigh frequencies, without causingthe smallsignalor largesignalbandwidth to decrease,and without increasingsettlingtimes. The ADSOS isdesignedfor high speed invertingapplications by usinga feed-forwardtechnique. Itcan drivecapacitive loadsinexcessof 1000pF and isshortcircuitprotected. The ADSOS providesperformance superiorto most high speed IC op amps and comparable to modular versions. Because of itsmonolithicconstruction,however, itscostis significantlybelow thatof modules, and becomes even lower inlargequantities. Allthe circuitsaresuppliedinthe TO-100 package. The ADSOS) and ADSOSK arespecifiedfor DoC to +70oC temperature range operation;the ADSOSS for operation from -55°C to +100°C. Information furnished by Analog Devices is believed to ue accurate and reliable.However, no responsibility isassumed by Analog Devices for itsuse; nor for any infringements of patents or other rightsof third parties which may result from itsuse. No license isgranted by implica- tion or otherwise under any patent or patent rightsof Analog Devices. H ;"", PRODUCT HIGHLIGHTS 1. The ADSOS achievesa minimum slew rateof 120V /l1secand settlesto 0.1% in 800nsec. Allguaranteedparameters,includingslew rateand offsetvoltagedrift,are 100% tested. The ADSOS maintainslow biascurrentsof 2SnA max and low Vos driftof lSp.V/C max. Ease of use and predictabilityof operationmake the ADSOS an all-purposeamplifierthatisfreeof the problems found inmost high frequency amplifiers. SLEW RATE AND SETTLING TIME Both slew rateand settlingtime aremeasures of an amplifier's speed of responseto an input. Slew rateisan inherent characteristicof the amplifierand, thus,isgenerallyless subjectto misinterpretationthan issettlingtime,which is oftenmore dependent upon the testcircuitthan the amplifier'sabilityto perform. Slew ratedefinesthe maximum rateof change of output voltagefora largeinput stepchange and can be relatedto S = 21TfpEo (continuedon page 3) Route 1 IndustrialPark;P.O. Box 280; Norwood, Mass. 02062 Tel:617/329-4700 TWX: 710/394-6577 OBSOLETE

SPECIFICATIONS(typical@+25°C and:!:15VDC,unlessotherwisenoted) PARAMETER OPEN LOOP GAIN RL = 2kil,Vo = tl0V Over Temp Range (Tmin to T max) OUTPUT CHARACTERISTICS Voltage @ RL = 2kn Over Temp Range (Tmin to T max) Current @ V 0 =tIOV Short CircuitCurrentj" FREQUENCY RESPONSE Unity Gain, Small Signal Full Power Response Slew Rate SettlingTime (Note 1) to 0.1% to 0.01% INPUT OFFSET VOLT AGE Initial,RS ~ IOkn Avg vs Temp (Tmin to T max) vs Supply (Tmin to T max) INPUT BIAS CURRENT Initial Over Temp Range (min to T max) Avg vs Temp (Tmin to T max) INPUT IMPEDANCE DC Above 10Hz AD50S} 100,000 min (SOO,OOO typ) 7S,OOO min tl0V min (t12V typ) tl0mA 2SmA 4 -10MHz (adjustable) 2.0MHz min (2.5MHz typ) 120V/j.Lsecmin (lSOV/j.Lsectyp) . 800nsec 2.0j.Lsec S.OmV max (1.0mV typ) ISj.LVtC 150j.LV/Vmax (801NN typ) 75nA max (15nA typ) 100nA max O.lnAtC 2Mn 20kn AD505K 200,000 min (500,000 typ) 150,000 min 2.5mV max (1.0mV typ) 15j.LVtC max (8j.LVtCtyp). 25nA rnax (l5nA typ) 40nA max AD505S 100,000 min 20j.LV/OC max (lOj.Lvtc typ). 80nAmax INPUT NOISE Voltage,0.01 to 10Hz(p-p) 0.01 to 1.0MHz(rms) Current,0.01 to 10Hz(p-p) POWER SUPPLY Rated Performance Operating,Derated Performance Current,Quiescent 2.5j.LV 10j.LV O.lnA t15V t(5 to 20)V 8.0mA max (6.0mA typ) TEMPERATURE RANGE Rated Performance (Tmin to T max) Operating Storage PRICE (Note 3) (1-24) (25-99) (100-999) O°C to +70°C -2SoC to +8SoC -6SoC to +IS0°C $IS.00 $12.00 $10.00 $18.00 $14.40 $12.00 -SSOC to +100oC (Note 2) -5SoC to +100oC (Note 2) $21.00 $16.80 $14.00 NOTES: ;See Figure 1 for test circuitdiagram. 3+12SoC operation ispossible with a lOOoC/W heat sink. Subject to change; refer to latestMicrocircuit Price List -2- 'Specificationssame asADSOSj .'Specificationssame asADSOSK OBSOLETE

Figure 5. Approximate High Frequency EquivalentCircuit. Figure6. Open Loop Frequency and Phase Response. obtainedusinga lkn:50kn ratio. and Xc(w) = reactivecapacitanceof capacitor. sincef and G(w) areinversefunctionsof frequency. AD505 isexternallycompensated with severalcapacitors. for VariousConditionsof Feedback.

PreamplifierforFast IC Multiplier PreamplifierforFast IC Multiplier Multipliersoftenprovidetheirbest accuracy when both inputs and output can swing through the full-scalerange. One of the problems intakingadvantage of the excellenthigh frequency capabilitiesof the AD5 30 Multiplier-Dividerissimply finding a low-costintegrated-.-:ircuitamplifiercapable of drivingit with :tlOV atfrequenciesup to lMHz. The AD505J makes an excellentpreamplifierfor thispurpose;itisshown above connected forgain of 50, and appliedto one of the AD530 inputs.Eitheror both inputsignalscan be preamplified inthismanner. In thiscircuit,the internal20krl resistorhas been shorted out formaximum bandwidth. The frequency for-3dB responseinthisconfigurationistypically1.6MHz, with fulloutput capability. BONDING DIAGRAM FEEDFORWARD COMPENSATION I BANDWIDTH CONTROL v' 6 OUTPUT The AD505 isavailablein chip or wafer form. Because of the criticalnatureof usingunpackaged devices,itissuggestedthat the factotybe contacted forspecificinformationregarding price,deliveryand testing. -6- OUTLINE DIMENSIONS - REF PI.ANF SEATING PLANE VPO ~I 50 115'65 ' "'-' TP ,-- ~8r-

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2:<5 I OJ x 90 "045370 ,:3. 0.7 I I (-~,?1'?o V 155 ' I \\(0 028 L!::=~~~ I\\~,*i~ [DIM BI '--t36:Y034040 MAX~t.;. \\ 01O_..J k- ~[DIM A I040 019 1:: cC' t TO-lOO PIN CONFIGURATION FEEDFORWARO -fiO!-- COMPENSATIO~JiJ - -,' ' "{9)~OMPENSATION (g,v, I I c/JN C /JbtuTPUT 'INPUT ?{ L Ji i -4'--1 - INPUT~~ .BANDWIDTH ,4-l CONTROL" --@-- TOP VIEW c u D c OBSOLETE