MC33171资料

元器件交易网www.cecb2b.comLow Operational Power, Single AmplifiersSupplyQuality bipolar fabrication with innovative design concepts are employedfor the MC33171/72/74 series of monolithic operational amplifiers. Thesedevices operate at 180 µA per amplifier and offer 1.8 MHz of gain bandwidthproduct and 2.1 V/µs slew rate without the use of JFET device technology.Although this series can be operated from split supplies, it is particularlysuited for single supply operation, since the common mode input voltageincludes ground potential (VEE). With a Darlington input stage, these devicesexhibit high input resistance, low input offset voltage and high gain. The allNPN output stage, characterized by no deadband crossover distortion andlarge output voltage swing, provides high capacitance drive capability,excellent phase and gain margins, low open loop high frequency outputimpedance and symmetrical source/sink AC frequency response.The MC33171/72/74 are specified over the industrial/ automotivetemperature ranges. The complete series of single, dual and quadoperational amplifiers are available in plastic as well as the surface mountpackages.•Low Supply Current: 180 µA (Per Amplifier)•Wide Supply Operating Range: 3.0 V to 44 V or ±1.5 V to ±22 V•Wide Input Common Mode Range, Including Ground (V•EE)Wide Bandwidth: 1.8 MHz•High Slew Rate: 2.1 V/µs•Low Input Offset Voltage: 2.0 mV•Large Output Voltage Swing: –14.2 V to +14.2 V (with ±15 V Supplies)•Large Capacitance Drive Capability: 0 pF to 500 pF•Low Total Harmonic Distortion: 0.03%•Excellent Phase Margin: 60°C•Excellent Gain Margin: 15 dB•Output Short Circuit Protection•ESD Diodes Provide Input Protection for Dual and QuadORDERING INFORMATIONOp AmpOperatingFunctionDeviceTemperature RangePackageSingleMC33171DTSO–8MC33171PTA = –40° to +85°CA = –40° to +85°CPlastic DIPDualMC33172DT = –40° to +85°CSO–8MC33172PTAA = –40° to +85°CPlastic DIPQuadMC33174DTMC33174PA = –40° to +85°CSO–14TA = –40° to +85°CPlastic DIPMOTOROLA ANALOG IC DEVICE DATAOrder this document by MC33171/DMC33171MC33172MC33174DUAL8811P SUFFIXD SUFFIXPLASTIC PACKAGEPLASTIC PACKAGECASE 626CASE 751(SO–8)PIN CONNECTIONSOffset Null18NCInv. Input2–7VCCNoninv. Input3+6OutputVEE45Offset Null(Single, Top View)Output 118 VCCInputs 12–17Output 23+2 V–6Inputs 2EE4+5(Top View)QUAD141411P SUFFIXD SUFFIXPLASTIC PACKAGEPLASTIC PACKAGECASE 6CASE 751A(SO–14)PIN CONNECTIONSOutput 1114Output 42Inputs 1––133+14+Inputs 412VCC411VEE5Inputs 2+102+6–3–9Inputs 3Output 278Output 3(Top View)©Motorola, Inc. 1996Rev 01元器件交易网www.cecb2b.comMC33171 MC33172 MC33174MAXIMUM RATINGSRatingSupply VoltageInput Differential Voltage RangeInput Voltage RangeOutput Short Circuit Duration (Note 2)Operating Ambient Temperature RangeOperating Junction TemperatureStorage Temperature RangeSymbolVCC/VEEVIDRVIRtSCTATJTstgValue±22(Note 1)(Note 1)Indefinite–40 to +85+150–65 to +150UnitVVVsec°C°C°CNOTES:1.Either or both input voltages must not exceed the magnitude of VCC or VEE.2.Power dissipation must be considered to ensure maximum junction temperature (TJ) is not exceeded.Representative Schematic Diagram(Each Amplifier)VCCQ1Q2Bias–Inputs+Q13Q12D1R5R3R4VEE/GndOffset Null(MC33171)C2Q15D3Q19Q14Q16Q8Q9Q10Q11Q3Q4Q5Q6Q7Q17R1C1R2D2R6R7R8Q18OutputCurrentLimit2MOTOROLA ANALOG IC DEVICE DATA元器件交易网www.cecb2b.comMC33171 MC33172 MC33174DC ELECTRICAL CHARACTERISTICS (VCC = +15 V, VEE = –15 V, RL connected to ground, TA = Tlow to Thigh [Note 3],unless otherwise noted.)CharacteristicsInput Offset Voltage (VCM = 0 V)VCC = +15 V, VEE = –15 V, TA = +25°CVCC = +5.0 V, VEE = 0 V, TA = +25°CVCC = +15 V, VEE = –15 V, TA = Tlow to ThighAverage Temperature Coefficient of Offset VoltageInput Bias Current (VCM = 0 V)TA = +25°CTA = Tlow to ThighInput Offset Current (VCM = 0 V)TA = +25°CTA = Tlow to ThighLarge Signal Voltage Gain (VO = ±10 V< RL = 10 k)TA = +25°CTA = Tlow to ThighOutput Voltage SwingVCC = +5.0 V, VEE = 0 V, RL = 10 k, TA = +25°CVCC = +15 V, VEE = –15 V, RL = 10 k, TA = +25°CVCC = +15 V, VEE = –15 V, RL = 10 k, TA = Tlow to ThighVCC = +5.0 V, VEE = 0 V, RL = 10 k, TA = +25°CVCC = +15 V, VEE = –15 V, RL = 10 k, TA = +25°CVCC = +15 V, VEE = –15 V, RL = 10 k, TA = Tlow to ThighOutput Short Circuit (TA = +25°C)Input Overdrive = 1.0 V, Output to GroundSourceSinkInput Common Mode Voltage RangeTA = +25°CTA = Tlow to ThighCommon Mode Rejection Ratio (RS ≤ 10 k) TA = +25°CPower Supply Rejection Ratio (RS = 100 Ω) TA = +25°CPower Supply Current (Per Amplifier)VCC = +5.0 V, VEE = 0 V, TA = +25°CVCC = +15 V, VEE = –15 V, TA = +25°CVCC = +15 V, VEE = –15 V, TA = Tlow to ThighNOTE:3.Tlow = –40°CThigh = +85°CSymbolVIOMin————————50253.513.613.3———Typ2.02.5—1020—5.0—500—4.314.2—0.05–14.2—Max4.55.06.5—100200UnitmV∆VIO/∆TIIBµV/°CnAIIOnA2040V/mV——V———0.15–13.6–13.3mA3.0155.027——VVEE to (VCC –1.8)VEE to (VCC –2.2)8080———90100180220———250250300dBdBµAAVOLVOHVOLISCVICRCMRRPSRRIDMOTOROLA ANALOG IC DEVICE DATA3元器件交易网www.cecb2b.comMC33171 MC33172 MC33174AC ELECTRICAL CHARACTERISTICS (VCC = +15 V, VEE = –15 V, RL connected to ground, TA = +25°C, unless otherwise noted.)CharacteristicsSlew Rate (Vin = –10 V to +10 V, RL = 10 k, CL = 100 pF)AV +1AV –1Gain Bandwidth Product (f = 100 kHz)Power BandwidthAV = +1.0 RL = 10 k, VO = 20 Vpp, THD = 5%Phase MarginRL = 10 kRL = 10 k, CL = 100 pFGain MarginRL = 10 kRL = 10 k, CL = 100 pFEquivalent Input Noise VoltageRS = 100 Ω, f = 1.0 kHzEquivalent Input Noise Current (f = 1.0 kHz)Differential Input ResistanceVcm = 0 VInput CapacitanceTotal Harmonic DistortionAV = +10, RL = 10 k, 2.0 Vpp ≤ VO ≤ 20 Vpp, f = 10 kHzChannel Separation (f = 10 kHz)Open Loop Output Impedance (f = 1.0 MHz)SymbolSR1.6—GBWBWpφm1.4—2.12.11.835————MHzkHzDegreesdB—————————155.0320.23000.80.03120100—————————nV/√HzpA/√HzMΩpF%dBΩMinTypMaxUnitV/µs——6045——AmenInRinCiTHDCSzoVICR , INPUT COMMON MODE VOLTAGE RANGE (V)Figure 1. Input Common Mode Voltage Rangeversus TemperatureVsat, OUTPUT SATURATION VOLTAGE (V)0VCC–0.8–1.6VCC/VEE = ±1.5 V to ±22 V∆VIO = 5.0 mV0Figure 2. Split Supply Output Saturationversus Load CurrentVCC–1.0SourceVCC/VEE = ±5.0 V to ±22 VTA = 25°C –2.40.1VEE0–55–250255075TA, AMBIENT TEMPERATURE (°C)1001251.0Sink0VEE01.02.03.0IL, LOAD CURRENT (±mA)4.04MOTOROLA ANALOG IC DEVICE DATA元器件交易网www.cecb2b.comMC33171 MC33172 MC33174Figure 3. Open Loop Voltage Gain andPhase versus FrequencyAVOL, OPEN LOOP VOLTAGE GAIN (dB)φm, PHASE MARGIN (DEGREES)302010PhaseMargin= 58°GainMargin1= 15 dB414016018020022010 M70120φ, EXCESS PAHSE (DEGREES)6050403020100102050100200CL, LOAD CAPACITANCE (pF)500%φmFigure 4. Phase Margin and PercentOvershoot versus Load Capacitance70VCC/VEE = ±15 V50AVOL = +1.0RL = 10 k∆VO = 20 mVpp40TA = 25°C30201001.0 k%, PERCENT OVERSHOOT256020VCC/VEE = ±15 VRL = 10 kVout = 0 V3–10TA = 25°C1 — Phase–202 — Phase, CL = 100 pF3 — Gain4 — Gain, CL = 100 pF–30100 k1.0 Mf, FREQUENCY (Hz)Figure 5. Normalized Gain Bandwidth Productand Slew Rate versus Temperature1.3GBW AND SR (NORMALIZED)1.2GBW1.11.0SR0.90.80.7–5510 V/DIV0VCC/VEE = ±15 VRL = 10 kFigure 6. Small and Large SignalTransient Response5.0 µs/DIV50 mV/DIV0VCC/VEE = ±15 VVCM = 0 VVO = 0 V∆IO = ±0.5 mATA = 25°C–250255075100125 5.0 µs/DIVTA, AMBIENT TEMPERATURE (°C)Figure 7. Output Impedance and FrequencyID, ICC, POWER SUPPLY CURRENT (mA)140zo , OUTPUT IMPEDANCE (Ω)1201008060402002002.0 k20 kf, FREQUENCY (Hz)200 k2.0 MAV = 10AV = 1.0VCC/VEE = ±15 VAV = +1.0RL = 10 kCL = 100 pFTA = 25°CFigure 8. Supply Current versus Supply Voltage1.11. TA = –55°C2. TA = 25°C3. T0.9A = 125°C0.7Dual0.50.30.105.01015VCC/VEE, SUPPLY VOLTAGE (±V)20Single123123Quad123AV = 1000AV = 100MOTOROLA ANALOG IC DEVICE DATA5元器件交易网www.cecb2b.com

MC33171 MC33172 MC33174

APPLICATIONS INFORMATION – CIRCUIT DESCRIPTION/PERFORMANCE FEATURES

Although the bandwidth, slew rate, and settling time of thevoltage to approach within millivolts of VEE. For sink currentsMC33171/72/74 amplifier family is similar to low power op(> 0.4 mA), diode D3 clamps the voltage across R4. Thus theamp products utilizing JFET input devices, these amplifiersnegative swing is limited by the saturation voltage of Q15,offer additional advantages as a result of the PNP transistorplus the forward diode drop of D3 (≈VEE +1.0 V). Thereforedifferential inputs and an all NPN transistor output stage.an unprecedented peak–to–peak output voltage swing isBecause the input common mode voltage range of thispossible for a given supply voltage as indicated by the outputinput stage includes the VEE potential, single supplyswing specifications.operation is feasible to as low as 3.0 V with the commonIf the load resistance is referenced to VCC instead ofmode input voltage at ground potential.ground for single supply applications, the maximum possibleThe input stage also allows differential input voltages up tooutput swing can be achieved for a given supply voltage. For±44 V, provided the maximum input voltage range is notlight load currents, the load resistance will pull the output toexceeded. Specifically, the input voltages must rangeVCC during the positive swing and the output will pull the loadbetween VCC and VEE supply voltages as shown by theresistance near ground during the negative swing. The loadmaximum rating table. In practice, although notresistance value should be much less than that of therecommended, the input voltages can exceed the VCCfeedback resistance to maximize pull–up capability.voltage by approximately 3.0 V and decrease below the VEEBecause the PNP output emitter–follower transistor hasvoltage by 0.3 V without causing product damage, althoughbeen eliminated, the MC33171/72/74 family offers a 15 mAoutput phase reversal may occur. It is also possible to sourceminimum current sink capability, typically to an output voltageup to 5.0 mA of current from VEE through either inputs’of (VEE +1.8 V). In single supply applications the output canclamping diode without damage or latching, but phasedirectly source or sink base current from a common emitterreversal may again occur. If at least one input is within theNPN transistor for current switching applications.common mode input voltage range and the other input isIn addition, the all NPN transistor output stage is inherentlywithin the maximum input voltage range, no phase reversalfaster than PNP types, contributing to the bipolar amplifier’swill occur. If both inputs exceed the upper common modeimproved gain bandwidth product. The associated highinput voltage limit, the output will be forced to its lowestfrequency low output impedance (200Ω typ @ 1.0MHz)voltage state.allows capacitive drive capability from 0 pF to 400 pF withoutSince the input capacitance associated with the smalloscillation in the noninverting unity gain configuration. Thegeometry input device is substantially lower (0.8 pF) than that60°C phase margin and 15 dB gain margin, as well as theof a typical JFET (3.0 pF), the frequency response for a givengeneral gain and phase characteristics, are virtuallyinput source resistance is greatly enhanced. This becomesindependent of the source/sink output swing conditions. Thisevident in D–to–A current to voltage conversion applicationsallows easier system phase compensation, since outputwhere the feedback resistance can form a pole with the inputswing will not be a phase consideration. The ACcapacitance of the op amp. This input pole creates a 2ndcharacteristics of the MC33171/72/74 family also allowOrder system with the single pole op amp and is thereforeexcellent active filter capability, especially for low voltagedetrimental to its settling time. In this context, lower inputsingle supply applications.capacitance is desirable especially for higher values ofAlthough the single supply specification is defined at 5.0 V,feedback resistances (lower current DACs). This input polethese amplifiers are functional to at least 3.0V @ 25°C.can be compensated for by creating a feedback zero with aHowever slight changes in parametrics such as bandwidth,capacitance across the feedback resistance, if necessary, toslew rate, and DC gain may occur.reduce overshoot. For 10 kΩ of feedback resistance, theIf power to this integrated circuit is applied in reverseMC33171/72/74 family can typically settle to within 1/2 LSBpolarity, or if the IC is installed backwards in a socket, largeof 8 bits in 4.2 µs, and within 1/2 LSB of 12 bits in 4.8 µs forunlimited current surges will occur through the device thata 10V step. In a standard inverting unity gain fast settlingmay result in device destruction.configuration, the symmetrical slew rate is typicallyAs usual with most high frequency amplifiers, proper lead±2.1V/µs. In the classic noninverting unity gaindress, component placement and PC board layout shouldconfiguration the typical output positive slew rate is alsobe exercised for optimum frequency performance. For2.1V/µs, and the corresponding negative slew rate willexample, long unshielded input or output leads may result inusually exceed the positive slew rate as a function of the fallunwanted input/output coupling. In order to preserve thetime of the input waveform.relatively low input capacitance associated with theseThe all NPN output stage, shown in its basic form on theamplifiers, resistors connected to the inputs should beequivalent circuit schematic, offers unique advantages overimmediately adjacent to the input pin to minimize additionalthe more conventional NPN/PNP transistor Class AB outputstray input capacitance. This not only minimizes the inputstage. A 10 kΩ load resistance can typically swing within 0.8Vpole for optimum frequency response, but also minimizesof the positive rail (VCC) and negative rail (VEE), providing aextraneous “pick up” at this node. Supply decoupling with28.4 Vpp swing from ±15 V supplies. This large output swingadequate capacitance immediately adjacent to the supply pinbecomes most noticeable at lower supply voltages.is also important, particularly over temperature, since manyThe positive swing is limited by the saturation voltage oftypes of decoupling capacitors exhibit great impedancethe current source transistor Q7, the VBE of the NPN pull–upchanges over temperature.transistor Q17, and the voltage drop associated with theThe output of any one amplifier is current limited and thusshort circuit resistance, R5. For sink currents less thanprotected from a direct short to ground. However, under such0.4mA, the negative swing is limited by the saturationconditions, it is important not to allow the device to exceedvoltage of the pull–down transistor Q15, and the voltage dropthe maximum junction temperature rating. Typically for ±15 Vacross R4 and R5. For small valued sink currents, the abovesupplies, any one output can be shorted continuously tovoltage drops are negligible, allowing the negative swingground without exceeding the maximum temperature rating.

6MOTOROLA ANALOG IC DEVICE DATA

元器件交易网www.cecb2b.comMC33171 MC33172 MC33174Figure 9. AC Coupled Noninverting Amplifierwith Single +5.0 V Supply2.2 k510 k100 k+–Vin1.0 kAV = 101BW ( –3.0 dB) = 20 kHz100 kRLFigure 10. AC Coupled Inverting Amplifierwith Single +5.0 V SupplyVCCVCCVO 0COVO100 kCinVin3.6 Vpp100 kCinVO 03.8 Vpp100 k10 k+–10 kCOVORL100 kAV = 10BW ( –3.0 dB) = 200 kHzFigure 11. DC Coupled Inverting AmplifierMaximum Output Swing with Single+5.0 V Supply100 k4.7 k50 kRLVO1.0 MVCCFigure 12. Offset Nulling CircuitVCC32+–4765110 k+–100 kV 2.5 VVinOAV = 10BW ( –3.0 dB) = 200 kHz4.2 VppVEEOffset Nulling range is approximately ±80 mV witha 10 k potentiometer, MC33171 only.Figure 13. Active High–Q Notch FilterFigure 14. Active Bandpass FilterVCCfo = 30 kHzQ = 10HO = 1.0VOVin ≥ 0.2 Vdc16 kVinR0.01C16 kR–+VOVinR11.1 kR25.6 k2C0.022R32 k2C0.02fo = 1.0 kHz1fo =4 π RCC0.047R32.2 k–C0.0470.4VCCThen:R1 =R32 HO+R2 =R1 R34Q2R1 –R3Qo foQGiven fo = center frequencyR3 =< 0.1Ao = Gain at center frequencyπ foCGBWChoose Value fo, Q, Ao, CFor less than 10% error for operational amplifier, where fo and GBW are expressed in Hz.MOTOROLA ANALOG IC DEVICE DATA7元器件交易网www.cecb2b.comMC33171 MC33172 MC33174OUTLINE DIMENSIONSP SUFFIXPLASTIC PACKAGECASE 626–05ISSUE K85–B–14NOTES:1.DIMENSION L TO CENTER OF LEAD WHENFORMED PARALLEL.2.PACKAGE CONTOUR OPTIONAL (ROUND ORSQUARE CORNERS).3.DIMENSIONING AND TOLERANCING PER ANSIY14.5M, 1982.DIMABCDFGHJKLMNMILLIMETERSINCHESMINMAXMINMAX9.4010.160.3700.4006.106.600.2400.2603.944.450.1550.1750.380.510.0150.0201.021.780.0400.0702. BSC0.100 BSC0.761.270.0300.0500.200.300.0080.0122.923.430.1150.1357.62 BSC0.300 BSC–––10 –––10 __0.761.010.0300.040FNOTE 2–A–LC–T–SEATINGPLANEJNDKMMTAMHG0.13 (0.005)BMD SUFFIXPLASTIC PACKAGECASE 751–05(SO–8)ISSUE RA8D5CE14H0.25MBMhBCeASEATINGPLANEX 45_NOTES:1.DIMENSIONING AND TOLERANCING PER ASMEY14.5M, 1994.2.DIMENSIONS ARE IN MILLIMETERS.3.DIMENSION D AND E DO NOT INCLUDE MOLDPROTRUSION.4.MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.5.DIMENSION B DOES NOT INCLUDE MOLDPROTRUSION. ALLOWABLE DAMBARPROTRUSION SHALL BE 0.127 TOTAL IN EXCESSOF THE B DIMENSION AT MAXIMUM MATERIALCONDITION.DIMAA1BCDEeHhLqMILLIMETERSMINMAX1.351.750.100.250.350.490.180.2.805.003.804.001.27 BSC5.806.200.250.500.401.250 7 __q0.10A10.25BMLCBSAS8MOTOROLA ANALOG IC DEVICE DATA元器件交易网www.cecb2b.comMC33171 MC33172 MC33174OUTLINE DIMENSIONSP SUFFIXPLASTIC PACKAGECASE 6–06ISSUE LNOTES:1.LEADS WITHIN 0.13 (0.005) RADIUS OF TRUEPOSITION AT SEATING PLANE AT MAXIMUMMATERIAL CONDITION.2.DIMENSION L TO CENTER OF LEADS WHENFORMED PARALLEL.3.DIMENSION B DOES NOT INCLUDE MOLDFLASH.4.ROUNDED CORNERS OPTIONAL.DIMABCDFGHJKLMNINCHESMILLIMETERSMINMAXMINMAX0.7150.77018.1619.560.2400.2606.106.600.1450.1853.694.690.0150.0210.380.530.0400.0701.021.780.100 BSC2. BSC0.0520.0951.322.410.0080.0150.200.380.1150.1352.923.430.300 BSC7.62 BSC0 10 0 10 ____0.0150.0390.391.01148B17AFCNHGDSEATINGPLANELJKMD SUFFIXPLASTIC PACKAGECASE 751A–03(SO–14)ISSUE F–A–148NOTES:1.DIMENSIONING AND TOLERANCING PER ANSIY14.5M, 1982.2.CONTROLLING DIMENSION: MILLIMETER.3.DIMENSIONS A AND B DO NOT INCLUDEMOLD PROTRUSION.4.MAXIMUM MOLD PROTRUSION 0.15 (0.006)PER SIDE.5.DIMENSION D DOES NOT INCLUDE DAMBARPROTRUSION. ALLOWABLE DAMBARPROTRUSION SHALL BE 0.127 (0.005) TOTALIN EXCESS OF THE D DIMENSION ATMAXIMUM MATERIAL CONDITION.–B–17P7 PL0.25 (0.010)MBMGC–T–SEATINGPLANERX 45_FD14 PL0.25 (0.010)KMMSJTBASDIMABCDFGJKMPRMILLIMETERSINCHESMINMAXMINMAX8.558.750.3370.3443.804.000.1500.1571.351.750.00.0680.350.490.0140.0190.401.250.0160.0491.27 BSC0.050 BSC0.190.250.0080.0090.100.250.0040.0090 7 0 7 ____5.806.200.2280.2440.250.500.0100.019MOTOROLA ANALOG IC DEVICE DATA9元器件交易网www.cecb2b.com

MC33171 MC33172 MC33174

NOTES

10MOTOROLA ANALOG IC DEVICE DATA

元器件交易网www.cecb2b.com

MC33171 MC33172 MC33174

NOTES

MOTOROLA ANALOG IC DEVICE DATA

11

元器件交易网www.cecb2b.comMC33171 MC33172 MC33174Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regardingthe suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, andspecifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motoroladata sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights ofothers. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or otherapplications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injuryor death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorolaand its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney feesarising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges thatMotorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an EqualOpportunity/Affirmative Action Employer.How to reach us:USA/EUROPE/Locations Not Listed: Motorola Literature Distribution;P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–MFAX: RMFAX0@email.sps.mot.com – TOUCHTONE 602–244–6609INTERNET: http://Design–NET.comJAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., . 852–2662929812◊*MC33171/D*MOTOROLA ANALOG IC DEVICE DATAMC33171/D