LT580 LINER

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f y LIN / \\I2 LT580/LT581 TECHNOLOGY Precision References FEATURES DESCRIPTION = Direct Replacement for Present References The LT580/LT581 are bandgap voltage references utilizing = Ultra Low Drift—3ppm/°C Typ. thin film technology and a greatly improved curvature = Curvature Corrected correction technique. Wafer level trimming of both refer- ™ Series or Shunt Operation ence and output voltage combines to produce units with ® Ultra High Line Rejection = /ppm/V high yields to very low TC and tight initial tolerance of out- = Low Output Impedance ~0.020 put voltage. © Tight Initial Output Voltage » 100% Noise Tested The LTSB0/LTS81 can both sink and source up to 10mA and can be used in either the series or shunt mode. This allows the reference to be used for both positive and nega- tive output voltages without external components. Mini- APPLICATIONS Mum input-output voltage is less than 1V in the series ® AtoDandDtoA Converters mode, providing improved tolerance of low line conditions. Eq = Precision Regulators rn vee age = V to F Converters , , . = Bridge Excitation SS ° Negative 10V Reference for CMOS DAC Output Voltage Drift 1.003 a+ gmt tt | Tt TY oe Fert tt tT Pe CCEET — - / - - PAH 1.2k 3 0.998 ad *LOW TC CEAMET, TRIM RANGE = + 1.5% 0.997 Lit ti tT | -§0 -25 0 23 7S 100 125 TEMPERATURE (°C) SSD LT WAR 3-121

ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION Input Voltage oo... 0. cece cece e scree eee eee SOV ORDER PART Operating Temperature Range LT580JH UK L,M Grades oo... cece ee eee ee sees OFC to 70°C outeut ERO ” LT580MH GROUND LT580SH H PACKAGE LT580TH TO-52 METAL CAN LT580UH BOTTOM VIEW LT581JH oS INPUT LT581KH LT581LH ourput LT581SH LTS81TH LT581UH GROUND H PACKAGE ‘TO-39 METAL CAN LS LT580 ELECTRICAL CHARACTERISTICS Vin = + 15V, Ta = 25°C unless otherwise noted LT580 Vp Output Voltage LT580J 2.425 2.500 2.575 Vv LT580K, S 2.475 2.500 2.525 v LT580L,M,T,U 2.490 2.500 2510 Vv TC Output Voltage Change LT580J (0°C to 70°C) 15 (85) mV (ppmi°C) Over Temperature in LT580K (0°C to 70°C) 7 (40) mV (ppm/°C) mV and (ppm/°C) LT580L (0°C to 70°C) 4.3. (25) mV (ppm/°C) LT580M (0°C to 70°C) 1.75(10) mV (ppm/°C) LT5B0S (55°C to + 125°C) 25 (55) mV (ppm/°C) LTSB0T (-55°C to + 125°C) 11 (25) mV (ppm/°C) LT580U (- 55°C to + 125°C) 45 (10) mV (opmi°C) AVour Line Regulation 7VsVys30V — LT580J,S 05 6 mV Ww LT580K 05 4 mv LTS80L, M, T, U 05 2 mv 45V<Viys7V_ LT580J,S 0.1 3 mv LT580K 041 2 mV LT580L, MT, U 04 1 mv Vout Load Regulation (Sourcing) Osloyrs10mA 1 10 mv Mout Shunt Mode - 1.5MA <Igyynts 10mA 2 10 mV lo [Quiescent Curent fo mA & | OutoutNoise(Notet) | ottiztotoHe Nop Output Voltage Per Month | 2 ww Stability with Time Long Term 250 aN a

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LT581 ELECTRICAL CHARACTE RISTICS Vin= + 15V, Ta = 25°C unless otherwise noted LT581 Va Output Voltage LT581S, J 9.970 10.000 10.030 v LT581T, K 9.990 10.000 10.010 Vv LT581U, L 9.995 10.000 10.005 v Tc Output Voltage LT581J (0°C to 70°C) e 13.5 (30) mV (ppmi°C) Change, Maximum LT581K (0°C to 70°C) e 6.75 (15) mV (ppm/°C) Deviation from 25°C LT581L (0°C to 70°C) e 2.25 (5) mV (ppm/°C) in mV and (ppm/°C) | LT581S (-55°C to + 125°C) ° 30 (30) mV (ppm/°C) LT581T(-55°C to + 125°C) e 15 (15) mV (ppmi°C) LT581U(-55°C to +125°C)_ | @ 10_(10) mv (ppmi°C) MVour Line Regulation 15V<Viys30V mV re 13V.sViys15V my AVour Load Regulation (Sourcing) O<Ioyrs5mA 50 500 pVimA lout Shunt Mode 1MA <loyyyt-<5mA 100 500 AVIMA in| OuiescentGurent om 40 mA e Output Noise (Note 1) 0.1Hz to 10Hz [| lwtst~‘“CSCSCSYT VDD Long Term Stability Non-Cumulative || at—t—S ppmikHr Igo Short Circuit | mA 3 | Current lout Output Current . Sourcing 10 Psy mA Sourcing 5 mA Sinking 5 mA The @ denotes the specifications which apply over the full operating Note 1: Although 0.1Hz to 10Hz noise is not a standard production test, temperature range. Linear Technology does 100% test 10Hz to 1kHz noise. Consult factory for details. el High Current Precision Supply Suggested Output Trim Output Current Boost with Current Limit Vin = 15V 3908 me, ' +Vin V+ 2 (Voyr+2.8V) : Veyeoeo Ni GLOWS IN 20 1 +V5 CURRENT LiMIT LED \\ {T580 yr Veer (00 NoT OMIT) “Pas a 2N2905 T5805 ama | 2k t Fx uses — | 180 | ak Hoe our |kono = 100mA +Vs Rt cee , ie a = ew 24 SOLID TANTALUM Vout U1881T, K 680 | 5k S581 OUT +10V AT 4A FS 15 ursatu.t | 330 | 5k GND = SS LY Wicae 3-123

‘Two-Terminal Negative Reference 12V Supply Connection tos 12V+5% iN ] EN 3 56000 + 5%4* U1S80 "out ‘crs : our OV AT OMA TO SMA eND ee Var + na !5V-Vaer “NOT REQUIRED ON LTC LT580 OR LTS81 anak -15V Negative Series Reference Optional Trim Configuration ve +15V Rit 11580 Vg. L1581 3 Nour +10.00V—qouT L7sa1 | $6.8k0 pe" a no = eNo v- a1 —Vree @ lox <50mA A R toxse 2N2905 TRIM MAX oS 4 +pt a2 =5V, ppc lV“IVREE ot vac + SV R_| RANGE | _sTCR ‘ama mA 2 | 230m | 3.5ppmiec 4.3kQ. 12a | *10mv | 20ppmec aga | +5mv | O.6ppmi°C -15V SR oe LT581 70-52 10-39 0200-0250, 0.350-0.370 | 0.178-0.195, oan bas (45214955) 0.165 0.185 Fee) | 115-0150 carer | OR 9.500 (9 381)) MIN —+ = as 0.500 y U0 (12.70) 100 os a | th gepeaas 0.016-0.019_ A wax 0.200 DIAS LEADS 0.100, we one LL iam EEN r S WP © (s 0,029-0.045 @ ; tse (@rr=1.14) oho o9ta— 1-168) Ke Tori=1.219) é Teeny // (2540) 45°. som [ex [ae] Co [a] wer | (isc [aro SSS