LM129_1资料

LM129/LM3296.9V PrecisionVoltage ReferenceFEATURESssssDESCRIPTIOGuaranteed 10ppm/°C Temperature CoefficientGuaranteed 1Ω Maximum Dynamic ImpedanceGuaranteed 20µV Maximum Wideband NoiseWide Operating Current Range 0.6mA to 15mAUAPPLICATIO SssssTransducersA/D and D/A ConvertersCalibration StandardsInstrumentation ReferenceThe LM129 temperature compensated 6.9V zener refer-ences provide excellent stability over time and tempera-ture, very low dynamic impedance and a wide operatingcurrent range. The device achieves low dynamic imped-ance by incorporating a high gain shunt regulator aroundthe zener. The excellent noise performance of the device isachieved by using a “buried zener” design which elimi-nates surface noise phenomenon associated with ordi-nary zeners. To serve a wide variety of applications, theLM129 is available in several temperature coefficientgrades and two package styles. A 20mA positive currentsource application is shown below., LTC and LT are registered trademarks of Linear Technology Corporation.TYPICAL APPLICATIO20mA Positive Current Source20VREVERSE VOLTAGE CHANGE (mV)20k0.1%174Ω0.1%8765432100Reverse Voltage ChangeTA = 25°CLM3296.95V2–+7LT10016320k0.1%410kOUT20mA129/329 TA014.3kU286REVERSE CURRENT (mA)410 129/329 TA01bU1

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LM129/LM329ABSOLUTE AXIU RATIGSOperating Temperature RangeLM129 (OBSOLETE)...................–55°C to 125°CLM329.....................................................0°C to 70°CStorage Temperature Range.................–65°C to 150°CWUPACKAGE/ORDER IFORATIOBOTTOM VIEWUORDER PARTNUMBERLM129AHLM329AHLM129BHLM329BHLM129CHLM329CHLM329DHH PACKAGE2-LEAD TO-46 METAL CANTJMAX = 150°C,θJA = 440°C/W, θJC = 80°C/WOBSOLETE PACKAGEConsider the Z Package for Alternate SourceConsult LTC Marketing for availability of LM329AZ,LM329CZ and LM329DZThe q denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. (Note 2)LM129A/LM129B/LM129CMINTYPMAX6.7qqqqqqqELECTRICAL CHARACTERISTICSPARAMETERReverse Breakdown VoltageReverse Breakdown VoltageChange with CurrentTemperature CoefficientCONDITIONSSYMBOLVZ∆VZ∆IR ∆VZ∆TempTA = 25°C, 0.6mA ≤ IR ≤ 15mATA = 25°C, 0.6mA ≤ IR ≤ 15mA1mA ≤ IR ≤ 15mAIR = 1mA,LM129A/LM329ALM129A/LM329BLM129A/LM329CLM329D1mA ≤ IR ≤ 15mATA =25°C, IR = 1mA1mA ≤ IR ≤ 15mATA =25°C, 10Hz ≤ f ≤ 10kHzTA = 45°C ±0.1°C, IR = 1mA ±0.3%Change in TemperatureCoefficientrZen ∆VZ∆TimeDynamic ImpedanceRMS NoiseLong Term StabilityNote 1: Absolute Maximum Ratings are those values beyond which the lifeof a device may be impaired.2

UWWW(Note 1)Lead Temperature (Soldering, 10 sec)..................300°CReverse Breakdown Current.................................30mAForward Current.....................................................2mABOTTOM VIEWORDER PARTNUMBERLM329AZLM329BZLM329CZLM329DZZ PACKAGE3-LEAD PLASTIC TO-92TJMAX = 150°C, θJA = 160°C/WLM329A/LM329B/LM329C/LM329DMINTYPMAX6.66.9912615305017.2520UNITSVmVmVppm/°Cppm/°Cppm/°Cppm/°Cppm/°C6.9912615307.21410205010205010010.60.87201200.817202100ΩΩµVppm/kHrNote 2: To determine the junction temperature as a function of theambient temperature, see θJA for each package.元器件交易网www.cecb2b.com

LM129/LM329TYPICAL PERFOR A CE CHARACTERISTICSReverse Characteristics10010010DYNAMIC IMPEDANCE (Ω)REVERSE CURRENT (mA)VOLTAGE (V)1.0Tj = 55°C0.1Tj = 25°CTj = 125°C0.016.45.6.556.656.756.856.95REVERSE VOLTAGE (V)Forward Characteristics1.21.0FORWARD VOLTAGE (V)NOISE (nV/√Hz)0.80.60.40.200.00150TA = 25°C1501000.010.11.0FORWARD CURRENT (mA)10129/329 G04101001kFREQUENCY (Hz)10k100k129/329 G05NOISE (10µV/DIV)SCHE ATICDIAGRA 150ΩQ2D16.2VQ32kQ410kQ130k2k2.6k2129/329 SDInformation furnished by Linear Technology Corporation is believed to be accurate and reliable.However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.WUW7.05129/329 G01Dynamic ImpedanceTA = 25°CResponse Time86OUTPUT1042014VIN6.8kVOUT1.0INPUT0100200300TIME (µs)400129/329 G030.1101001k10kFREQUENCY (Hz)100k129/329 G020Noise VoltageLow Frequency Noise Voltage0.01Hz TO 1Hz050150100TIME (µs)200250129/329 G06 W+1kQ5Q615pF30pFQ7–3

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LM129/LM329TYPICAL APPLICATIO SCommon Reference9V TO 40VRSIMIN ≥ 0.6mA15V9k7.5k2LM3296.9VLM3296.9V129/329 TA02PACKAGE DESCRIPTIO(Reference LTC DWG # 05-08-1340)0.209 – 0.219(5.309 – 5.537)0.178 – 0.195(4.521 – 4.953)0.500 (12.700)MIN*0.085 – 0.105(2.159 – 2.667)H Package2-Lead and 3-Lead TO-46 Metal CanREFERENCEPLANE0.025(0.635)MAX 0.016 – 0.021**(0.406 – 0.533)DIA0.050(1.270)TYP0.100(2.540)TYPPIN 1FOR 3-LEAD PACKAGE ONLY45°0.036 – 0.046(0.914 – 1.168)0.028 – 0.048(0.711 – 1.219)H02/03(TO-46) 10980.050(1.270)TYP*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND 0.045\" BELOW THE REFERENCE PLANE0.016 – 0.024**FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS(0.406 – 0.610)OBSOLETE PACKAGERELATED PARTSPART NUMBERLT1460LT1634DESCRIPTIONMicropower, Precise Series Reference0.05% Accurate, 10ppm/°C, Shunt ReferenceCOMMENTS10ppm/°C, Output Voltages: 2.5V, 3V, 3.3V, 5V, 10VOutput Voltages: 1.25V, 2.5V, 4.096V, 5V4

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(408) 432-1900 q FAX: (408) 434-0507 q www.linear.comUUBuffered ReferenceUsing a Single Supply–+7LT1001610V320k1%4129/329 TA03Z Package3-Lead Plastic TO-92 (Similar to TO-226)(Reference LTC DWG # 05-08-1410)0.060 ± 0.005(1.524± 0.127)DIA0.180 ± 0.005(4.572 ± 0.127)0.180 ± 0.005(4.572 ± 0.127)0.90(2.286)NOM0.500(12.70)MIN0.050UNCONTROLLED(1.270)LEAD DIMENSIONMAX5°NOM0.050(1.27)BSC0.016 ± 0.003(0.406 ± 0.076)0.015 ± 0.002(0.381 ± 0.051)0.098 +016/–0.04(2.5 +0.4/–0.1)2 PLCSZ3 (TO-92) 04010.060 ± 0.010(1.524 ± 0.254)0.140 ± 0.010(3.556 ± 0.127)TO-92 TAPE AND REEL REFER TO TAPE AND REEL SECTION OF LTC DATA BOOK FOR ADDITIONAL INFORMATION10° NOM129329fa LT/CP 0901 1.5K REV A • PRINTED IN USA

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