LT1004 Micropower Voltage Reference FeaTures DescripTion n Guaranteed ±4mV Initial Accuracy LT1004-1.2 The LT®1004 micropower voltage reference is a n Guaranteed ±20mV Accuracy LT1004-2.5 2-terminal bandgap reference diode designed to provide n Guaranteed 10µA Operating Current high accuracy and excellent temperature characteristics n Guaranteed Temperature Performance at very low operating currents. Optimization of the key n Operates up to 20mA parameters in the design, processing and testing of n Very Low Dynamic Impedance the device results in accuracy specifications previously attainable only with selected units. Below is a distribution plot of reference voltage for a typical lot of LT1004-1.2. applicaTions Virtually all of the units fall well within the prescribed limits of ±4mV. n Portable Meter References n Portable Test Instruments The LT1004 is a pin-for-pin replacement for the n Battery-Operated Systems LM185/LM385 series of references with improved accu- n Current Loop Instrumentation racy specifications. More important, the LT1004 is an attractive device for use in systems where accuracy was previously obtained at the expense of power consump- tion and trimming. For a low drift micropower reference with guaranteed tem- perature coefficient, see the LT1034 data sheet. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog Devices, Inc. All other trademarks are the property of their respective owners. Typical applicaTion Typical Distribution of Micropower Cold Junction Compensation for Thermocouples Reference Voltage (LT1004-1.2) 200 1200 PARTS * 180 TA = 25°C 100k 160 R1 3V TS 140 R LITHIUM 1684Ω 5k AT 25°C† PA 120 F LT1004-1.2 + R O 100 E 186Ω 1.8k UMB 80 N 60 + 40 – – 20 THERMOCOUPLE * QUIESCENT CURRENT ≅ 15A TYPE R1 † YELLOW SPRINGS INST. CO. 25 3 35 4 45 5 55 6 65 7 75 3 3 3 3 3 3 3 3 3 3 3 J 233k PART #44007 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 K 299k COMPENSATES WITHIN 1004 TA02 T 300k ±1°C FROM 0°C TO 60°C S 2.1M 1004 TA01 1004fc 1 For more information www.linear.com/LT1004

LT1004 absoluTe MaxiMuM raTings (Note 1) Reverse Breakdown Current ..................................30mA Operating Temperature Range Forward Current ................................................... 10mA LT1004M .......................................... –55°C to 125°C Storage Temperature Range ................. –65°C to 150°C LT1004I .............................................. –40°C to 85°C Lead Temperature (Soldering, 10 sec) ................. 300°C LT1004C ................................................ 0°C to 70°C pin conFiguraTion TOP VIEW BOTTOM VIEW BOTTOM VIEW NC 1 8 VOUT 1 2 NC 2 7 NC NC 3 6 VOUT NC GND 4 5 (DO NOT USE) Z PACKAGE H PACKAGE 2-LEAD TO-46 METAL CAN S8 PACKAGE 3-LEAD PLASTIC TO-92 TJMAX = 150°C, θJA = 440°C/W, θJC = 8 0°C/W TJMA8X- L=E 1A5D0 °PCL, AθSJAT I=C 1 S2O0°C/W TJMAX = 150°C, θJA = 160°C/W orDer inForMaTion http://www.linear.com/product/LT1004#orderinfo LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LT1004MH-2.5#PBF LT1004MH-2.5#TRPBF 2-Lead TO-46 Metal Can –55°C to 125°C LT1004CS8-1.2#PBF LT1004CS8-1.2#TRPBF 0412 8-Lead Plastic S0 0°C to 70°C LT1004CS8-2.5#PBF LT1004CS8-2.5#TRPBF 0425 8-Lead Plastic S0 0°C to 70°C LT1004IS8-1.2#PBF LT1004IS8-1.2#TRPBF 0412I 8-Lead Plastic S0 –40°C to 85°C LT1004IS8-2.5#PBF LT1004IS8-2.5#TRPBF 0425I 8-Lead Plastic S0 –40°C to 85°C LT1004CZ-1.2#PBF LT1004CZ-1.2#TRPBF 3-Lead Plastic TO-92 0°C to 70°C LT1004CZ-2.5#PBF LT1004CZ-2.5#TRPBF 3-Lead Plastic TO-92 0°C to 70°C LT1004IZ-1.2#PBF LT1004IZ-1.2#TRPBF 3-Lead Plastic TO-92 –40°C to 85°C LT1004IZ-2.5#PBF LT1004IZ-2.5#TRPBF 3-Lead Plastic TO-92 –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 1004fc 2 For more information www.linear.com/LT1004

LT1004 elecTrical characTerisTics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T = 25°C. A C, I SUFFIXES H SUFFIX SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS V Reverse Breakdown Voltage I = 100µA 1.231 1.235 1.239 2.480 2.500 2.520 V Z R LT1004M: –55°C ≤ T ≤ 125°C ● 1.220 1.230 1.245 2.460 2.500 2.535 V A LT1004C: 0°C ≤ T ≤ 70°C ● 1.225 1.235 1.245 2.470 2.500 2.530 V A LT1004I: –40°C ≤ T ≤ 85°C ● 1.220 1.230 1.245 2.460 2.500 2.530 V A ∆VZ Average Temperature Coefficient IMIN ≤ IR ≤ 20mA (Note 3) 20 20 ppm/°C ∆Temp I Minimum Operating Current ● 8 10 12 20 µA MIN ∆V Reverse Breakdown Voltage I ≤ I ≤ 1mA 1.0 1.0 mV Z MIN R ∆I Change with Current ● 1.5 1.5 mV R 1mA ≤ I ≤ 20mA 10 10 mV R ● 20 20 mV r Reverse Dynamic Impedance I = 100µA 0.2 0.6 0.2 0.6 Ω Z R ● 1.5 1.5 Ω e Wide Band Noise (RMS) I = 100µA, 10Hz ≤ f ≤ 10kHz 60 120 µV n R ∆VZ Long Term Stability IR = 100µA, TA = 25°C ± 0.1°C 20 20 ppm/kHr ∆Time Note 1: Stresses beyond those listed under Absolute Maximum Ratings Note 2: All specifications are for T = 25°C unless otherwise noted. A may cause permanent damage to the device. Exposure to any Absolute Note 3: Selected devices with guaranteed maximum temperature Maximum Rating condition for extended periods may affect device coefficient are available upon request. reliability and lifetime. For MIL-STD components, please refer to LTC883C data sheet for test listing and parameters. 1004fc 3 For more information www.linear.com/LT1004

LT1004 Typical perForMance characTerisTics Reverse Characteristics Reverse Voltage Change Forward Characteristics 1.2 100 –55°C TO 125°C 16 TA = 25°C –55°C TO 125°C URRENT (µA) 10 E CHANGE (mV) 128 D VOLTAGE (V) 0.8 C G R EVERSE 1 T VOLTA 4 FORWA 0.4 R U P UT 0 O 0 0.1 0.01 0.1 1 10 100 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 –40.01 0.1 1 10 100 FORWARD CURRENT (mA) REVERSE VOLTAGE (V) REVERSE CURRENT (mA) 1004 G11 1004 G01 1004 G02 Temperature Drift Reverse Dynamic Impedance Reverse Dynamic Impedance 10k 1.245 100 TA = 25°C –55°C TO 125°C IR = 100µA f = 25Hz 1k SE VOLTAGE (V)11..224305 C IMPEDANCE (Ω) 10 MIC IMPEDANCE (Ω) 10100 REVER1.230 DYNAMI 1 DYNA 1 1.225 0.1 0.1 10 100 1k 10k 100k 1M –55 –35 –15 5 25 45 65 85 105 125 0.01 0.1 1 10 100 FREQUENCY (Hz) TEMPERATURE (°C) REVERSE CURRENT (mA) 1004 G06 1004 G04 1004 G05 Noise Voltage Filtered Output Noise Reponse Time 700 70 IR = 100µA IR = 100µA 600 TA = 25°C 60 RC LOW PASS 100µA 1.5 OUTPUT 500 50 R NOISE (nV/Hz)430000 NOISE (nV/Hz) 4300 C VOLTAGE (V) 10..050 VIN 36k VOUT 200 20 100 10 5V INPUT 0 0 0 10 100 1k 10k 100k 100 1k 10k 100k 0 100 500 600 FREQUENCY (Hz) FREQUENCY (Hz) TIME (µs) 1004 G07 1004 G08 1004 G09 1004fc 4 For more information www.linear.com/LT1004

LT1004 perForMance characTerisTics Reverse Characteristics Forward Characteristics 1.2 100 TA = 25°C –55°C TO 125°C V) URRENT (µA) 10 D VOLTAGE ( 0.8 C R SE WA 0.4 R R E 1 O V F E R 0 0.1 0.01 0.1 1 10 100 0 0.5 1.0 1.5 2.0 2.5 3.0 FORWARD CURRENT (mA) REVERSE VOLTAGE (V) 1004 G11 1004 G10 Temperature Drift Reverse Dynamic Impedance Reverse Dynamic Impedance 1000 10k f = 25Hz TA = 25°C –55°C TO 125°C IR = 100µA 2.515 1k VOLTAGE (V)222...555100050 MPEDANCE (Ω)10100 MPEDANCE (Ω) 100 NCE 2.495 MIC I MIC I 10 REFERE22..449805 DYNA 1 DYNA 1 2.480 0.1 0.1 0.01 0.1 1 10 100 10 100 1k 10k 100k 1M –55 –35 –15 5 25 45 65 85 105 125 REVERSE CURRENT (mA) FREQUENCY (Hz) TEMPERATURE (°C) 1004 G13 1004 G14 1004 G12 Noise Voltage Filtered Output Noise Reponse Time 1400 120 IR = 100µA IR = 100µA 1200 100 100µA 1000 µV) R RC LOW PASS 3 OUTPUT NOISE (nV/Hz)860000 EGRATED NOISE ( 864000 C VOLTAGE (V) 210 VIN 24k VOUT 400 T N I 200 20 5V INPUT 0 0 0 10 100 1k 10k 100k 100 1k 10k 100k 100 500 FREQUENCY (Hz) CUTOFF FREQUENCY (Hz) TIME (µs) 1004 G15 1004 G16 1004 G17 1004fc 5 For more information www.linear.com/LT1004

LT1004 Typical applicaTions High Stability 5V Regulator Variable Output Supply LT338A LT338A VIN ≥ 8V IN OUT 5V VIN VIN VOUT VOUT + ADJ + ADJ 300Ω 120Ω + 1µF 1% 1µF 10µF LT1004-2.5 LT1004-1.2 100Ω 1004 TA08 1% 2k R1 1004 TA03 V– – 1V R1 ≤ 0.015 V– Constant Gain Amplifier Over Temperature Micropower 5V Reference V+ ≥ 5V VIN 9V to 15V LM334 250k 250k R OUTPUT 5.6k 3 + 7 INPUT LM4250 6 VOUT 5V 2 – 8 2N3904 LT1004-1.2 4 22M 150pF 31.%01M 200k LT1004-1.2 60k 1M 1% V– ≤ –5V 1004 TA07 1004 TA13 Lead Acid Low-Battery Detector Ground Referenced Current Source 15V BATTERY OUTPUT R1† 12V 2k* 1M 1% 3 + 7 LT1004-1.2 6 LM4250 LO = BATTERY LOW 133k 2 – 8 R 1% 4 2 – 7 10M LT1004-1.2 6 LT1007C 1004 TA04 1004 TA14 3 †R1 SETS TRIP POINT, 60.4k + IOUT = 1.2R35 PER CELL FOR 1.8V/CELL 4 2V R ≈ IOUT + 10µA IOUT –5V *MAY BE INCREASED FOR SMALL OUTPUT CURRENTS 1004fc 6 For more information www.linear.com/LT1004

LT1004 Typical applicaTions VPP Generator for Eproms –– No Trim Required 1.2V Reference from 1.5V Battery 100pF 1.5V* 24V 24V 1 600µs RC 3k PER INTEL 22k 3 + 8 SPEC 12k 7 1.235V LM301A OUT 21V LT1004-1.2 0.05µF 2 – 6 LT1004-1.2 4 16.9k* 10k –5V *OUTPUT REGULATES 2N3904 TTL INPUT DOWN TO 1.285V 56k 1.05k* FOR IOUT = 0 1004 TA12 *1% METAL FILM RESISTORS 1004 TA15 –5V Micropower Reference from 9V Battery 2.5V Reference Low Noise Reference 9V 5V VIN ≥ 5V 510k 50k 100µA 22Ω 1.235V 2.500V OUTPUT + LT1004-1.2 LT1004-2.5 LT1004-1.2 50µF 1004 TA11 1004 TA10 1004 TA09 scheMaTic DiagraMs LT1004-1.2 LT1004-2.5 + + 7.5k Q13 7.5k Q13 Q4 Q12 Q4 Q12 Q3 200k Q3 200k 20pF 20pF Q11 20pF 20pF Q11 Q1 50k Q1 50k 600k Q10 600k Q10 300k 300k 500k Q5 Q9 Q14 Q5 Q9 Q14 Q6 Q8 Q6 Q8 500k 500k 500Ω 60k 500k 500Ω 60k – – 1004-1.2 SD 1004-2.5 SD 1004fc 7 For more information www.linear.com/LT1004

LT1004 package DescripTion Please refer to http://www.linear.com/product/LT1004#packaging for the most recent package drawings. H Package 2-Lead and 3-Lead TO-46 Metal Can (Reference LTC DWG # 05-08-1340) .209 – .219 (5.309 – 5.537) .178 – .195 .085 – .105 (4.521 – 4.953) (2.159 – 2.667) .500 (12.700) MIN REFERENCE PLANE SEATING* PLANE .025 (0.635) MAX .016 – .019** (0.406 – 0.483) DIA .100 .050 (2.540) .050 (1.270) TYP TYP (1.270) TYP PIN 1 FOR 3-LEAD PACKAGE ONLY 45° .036 – .046 .028 – .048 (0.914 – 1.168) (0.711 – 1.219) H02/03(TO-46) 0801 *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND .050" BELOW THE REFERENCE PLANE .016 – .024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 – 0.610) 1004fc 8 For more information www.linear.com/LT1004

LT1004 package DescripTion Please refer to http://www.linear.com/product/LT1004#packaging for the most recent package drawings. S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610 Rev G) .189 – .197 .045 ±.005 (4.801 – 5.004) .050 BSC NOTE 3 8 7 6 5 .245 MIN .160 ±.005 .150 – .157 .228 – .244 (3.810 – 3.988) (5.791 – 6.197) NOTE 3 .030 ±.005 TYP 1 2 3 4 RECOMMENDED SOLDER PAD LAYOUT .010 – .020 × 45° .053 – .069 (0.254 – 0.508) (1.346 – 1.752) .004 – .010 .008 – .010 (0.203 – 0.254) 0°– 8° TYP (0.101 – 0.254) .016 – .050 .014 – .019 .050 (0.406 – 1.270) (0.355 – 0.483) (1.270) NOTE: INCHES TYP BSC 1. DIMENSIONS IN (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) SO8 REV G 0212 4. PIN 1 CAN BE BEVEL EDGE OR A DIMPLE 1004fc 9 For more information www.linear.com/LT1004

LT1004 package DescripTion Please refer to http://www.linear.com/product/LT1004#packaging for the most recent package drawings. Z Package 3-Lead Plastic TO-92 (Similar to TO-226) (Reference LTC DWG # 05-08-1410 Rev C) .180 ± .005 .060 ± .005 (4.572 ± 0.127) (1.524± 0.127) DIA .90 (2.286) NOM .180 ± .005 (4.572 ± 0.127) 5° NOM .500 .050 UNCONTROLLED (12.70) (1.270)LEAD DIMENSION MIN MAX .016 ± .003 .015 ± .002 .050 (0.406 ± 0.076) (0.381 ± 0.051) Z3 (TO-92) 1008 REV C .098 +.016/–.04 (1.27) (2.5 +0.4/–0.1) BSC 2 PLCS BULK PACK TO-92 TAPE AND REEL REFER TO TAPE AND REEL SECTION OF .060 ± .010 LTC DATA BOOK FOR ADDITIONAL INFORMATION (1.524 ± 0.254) .140 ± .010 3 2 1 (3.556 ± 0.127) 10° NOM 1004fc 10 For more information www.linear.com/LT1004

LT1004 revision hisTory (Revision history begins at Rev C) REV DATE DESCRIPTION PAGE NUMBER C 07/17 Added Web Links All Package Order Information Updated: T changed to 150°C for S8 and TO-92 package. Thermal resistance 2 JMAX (Junction to Ambient) changed to 120°C/W 1004fc Information furnished by Linear Technology Corporation is believed to be accurate and reliable. 11 However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconneFctoiorn m ofo itrse c iinrcfuoirtsm aas tdioesnc rwibwedw h.elirneiena wr.icll onmot /inLfTri1ng0e0 o4n existing patent rights.

LT1004 Typical applicaTion 0°C to 100°C Linear Output Thermometer NETWORK DETAIL YSI 44201 BRN GRN 6250Ω 15V RT NETWORK YSI 44201 RED 2.7k 5% 10k 3.2k 0.1% 4 – 2765Ω 0.1% 1/2 13 10 + 3 LT1002 1/2 6 VOUT LT1004-1.2 + LT1002 0V TO10V 11 0°C TO 100°C – 10k 10k 0.1% 0.1% 1004 TA05 168.3Ω 0.1% Low Temperature Coefficient 2-Terminal Current Source LM334 R 6.8k R ≤ 5k LT1004-1.2 1.3V IOUT ≈ R 1004 TA06 relaTeD parTs PART NUMBER DESCRIPTION COMMENTS LT1634 Micropower Precision Shunt Reference 10µA Operating Current, 10ppm/°C Maximum Drift, 0.05% Initial Accuracy LT1460S3-2.5 Micropower Series Reference in SOT-23 100µA Operating Current, 20ppm/°C Maximum Drift, 0.2% Initial Accuracy LT1790 Precision Micropower LDO Reference 10ppm/°C Max Drift, 0.05% Initial Accuracy in SOT-23 1004fc 12 LT 0717 REV C • PRINTED IN USA www.linear.com/LT1004  LINEAR TECHNOLOGY CORPORATION 1985

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: A nalog Devices Inc.: LT1004IZ-2.5#PBF LT1004IS8-1.2#TRPBF LT1004CS8-2.5#PBF LT1004IZ-1.2#PBF LT1004CZ-1.2#PBF LT1004CS8-1.2#TRPBF LT1004CZ-2.5#PBF LT1004IZ-1.2#TRPBF LT1004IS8-2.5#PBF LT1004CZ-1.2#TRPBF LT1004CS8-1.2#PBF LT1004IS8-1.2#PBF LT1004CZ-2.5#TRPBF LT1004IS8-2.5#TRPBF LT1004CS8-2.5#TRPBF LT1004IZ-2.5#TRPBF