LT1009 Series 2.5V Reference U FEATURES DESCRIPTIO Maximum Initial Tolerance: 0.2% Guaranteed Temperature Stability Maximum 0.6 Dynamic Impedance Wide Operating Current Range Directly Interchangeable with LM136 for Improved Performance No Adjustments Needed for Minimum Temperature Coefficient U APPLICATIO S Reference for 5V Systems 8-Bit A/D and D/A Reference Digital Voltmeters Current Loop Measurement and Control Systems Power Supply Monitor Even though no adjustments are needed with the LT1009, a third terminal allows the reference voltage to be adjusted 5% to calibrate out system errors. In many applications, the LT1009 can be used as a pin-to-pin replacement of the LM136 and the external trim network eliminated. For a lower drift 2.5V reference, see the LT1019 data sheet. , LTC and LT are registered trademarks of Linear Technology Corporation. U The LT(R)1009 is a precision trimmed 2.5V shunt regulator diode featuring a maximum initial tolerance of only 5mV. The low dynamic impedance and wide operating current range enhances its versatility. The 0.2% reference tolerance is achieved by on-chip trimming which not only minimizes the initial voltage tolerance but also minimizes the temperature drift. TYPICAL APPLICATION 2.5V Reference Output Voltage 2.53 5V TO 35V OUTPUT LT1009 10k* TRIM *DOES NOT AFFECT TEMPERATURE COEFFICIENT. 5% TRIM RANGE REFERENCE VOLTAGE (V) 2.52 3.6k 2.51 GUARANTEED MAXIMUM TYPICAL 2.50 2.49 GUARANTEED MINIMUM 2.48 1009 TA01 2.47 -50 -25 50 25 75 0 TEMPERATURE (C) 100 125 1009 TA02 1 LT1009 Series W W W AXI U U ABSOLUTE RATI GS (Note 1) Reverse Current .................................................... 20mA Forward Current ................................................... 10mA Storage Temperature Range ................. - 65C to 150C Lead Temperature (Soldering, 10 sec).................. 300C Operating Temperature Range LT1009/LT1009C .................................. 0C to 70C LT1009I ........................................... - 40C to 85C LT1009M (OBSOLETE) ................... -55C to 125C U U W PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER BOTTOM VIEW ADJ + ORDER PART NUMBER TOP VIEW LT1009MH LT1009CH - NC NC NC (-) 8 7 6 5 1 2 3 4 (+) NC (+) ADJ MS8 PACKAGE 8-LEAD PLASTIC MSOP H PACKAGE 3-LEAD TO-46 METAL CAN LT1009CMS8 MS8 PART MARKING LTQZ TJMAX = 150C, JA = 250C/ W TJMAX = 150C, JA = 440C/ W, JC = 80C/ W OBSOLETE PACKAGE Consider the MS8, S8 or Z Packages for Alternate Source ORDER PART NUMBER TOP VIEW NC 1 8 (+) NC 2 7 NC NC 3 6 (+) (-) 4 5 ADJ ORDER PART NUMBER BOTTOM VIEW ADJ + - LT1009S8 LT1009IS8 S8 PART MARKING S8 PACKAGE 8-LEAD PLASTIC SO 1009 1009I TJMAX = 150C, JA = 190C/ W LT1009CZ LT1009IZ Z PACKAGE 3-LEAD PLASTIC TO-92 TJMAX = 100C, JA = 160C/ W Consult LTC Marketing for parts specified with wider operating temperature ranges. U AVAILABLE OPTIO S TEMPERATURE 0C to 70C -40C to 85C -55C to 125C 2 ACCURACY (%) TEMPERATURE COEFFICIENT (ppm/C) 0.20 0.40 25 25 0.20 0.40 35 35 0.20 35 TO-46 (H) OBSOLETE PACKAGE STYLE MSOP-8 SO-8 (MS8) (S8) LT1009CH TO-92 (Z) LT1009CZ LT1009CMS8 LT1009S8 LT1009IZ LT1009IS8 LT1009MH LT1009 Series ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25C. SYMBOL PARAMETER CONDITIONS MIN VZ Reverse Breakdown Voltage TA = 25C, IR = 1mA, VZ IR Reverse Breakdown Change with Current 400A IR 10mA rZ Reverse Dynamic Impedance IR = 1mA Temperature Stability TMIN TA TMAX H, Z Pkg MS, S Pkg LT1009M TYP MAX 2.495 2.500 2.505 Average Temperature 0C TA 70C Coefficient (Notes 2, 3) - 40C TA 85C - 55C TA 125C VZ Time Long-Term Stability LT1009I TYP MAX UNITS 2.495 2.500 2.505 2.495 2.500 2.505 2.49 2.50 2.51 2.49 2.50 2.51 V V 2.6 3.0 6 10 2.6 3.0 10 12 2.6 3.0 10 12 mV mV 0.2 0.4 0.6 1.0 0.2 0.4 1.0 1.4 0.2 0.4 1.0 1.4 15 1.8 4 mV 15 25 15 25 35 15 25 25 35 ppm/C ppm/C ppm/C 15 VZ Temp LT1009/LT1009C MIN TYP MAX MIN TA = 25C 0.1C, IR = 1mA 20 Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Guaranteed by Design. 20 20 ppm/kHr Note 3: Average temperature coefficient is defined as the total voltage change divided by the specified temperature change. U W TYPICAL PERFOR A CE CHARACTERISTICS Reverse Characteristics Reverse Voltage Change Forward Characteristics 10 -1 5 1.2 REVERSE VOLTAGE CHANGE (mV) TJ = 25C 10 -2 FORWARD VOLTAGE (V) REVERSE CURRENT (A) 1.0 10 -3 TJ = 25C 10 -4 TJ = 125C 0.8 0.6 0.4 0.2 4 3 2 1 TJ = -55C 10 -5 0.5 1.0 1.8 2.2 1.4 REVERSE VOLTAGE (V) 2.6 0 0.001 0 0.01 0.1 1 10 FORWARD CURRENT (mA) 0 4 12 16 8 REVERSE CURRENT (mA) 20 1009 G02 1009 G01 1009 G03 3 LT1009 Series U W TYPICAL PERFOR A CE CHARACTERISTICS Dynamic Impedance Output Noise Voltage 100 Response Time 3.5 250 IR = 1mA TJ = 25C 3.0 VOLTAGE SWING (V) 1 OUTPUT 2.5 200 10 NOISE (pV/Hz) DYNAMIC IMPEDANCE () IR = 1mA -55C TJ 125C 150 2.0 1.5 5k 1.0 0.5 100 INPUT OUTPUT 0 10 INPUT 4 0.1 100 10 1k 10k FREQUENCY (Hz) 50 100k 0 10 1k 100 10k 0 100k FREQUENCY (Hz) 1009 G04 W W SCHE ATIC DIAGRA + Q11 24k 24k 6.6k Q8 Q7 20pF 30pF 10k Q10 500 Q9 Q2 Q6 Q3 Q5 ADJ 30k 6.6k Q4 Q1 Q12 720 Q13 - 1009 SD 4 20 1009 G06 1009 G05 Q7 1 TIME (s) LT1009 Series U TYPICAL APPLICATIO S Wide Supply Range, Adjustable Reference Low Temperature Coefficient Power Regulator 3.6V TO 40V V+ VIN LM334 V- LT1009 R IN LT317A OUT ADJ 62 VOUT 1.2k 375 LT1009 10k 1009 TA03 2k 1009 TA04 Switchable 1.25V Bipolar Reference 5V 5k 5V 5k LT1009 -5V 10k 1% OUT 9.76k 1% 500 1009 TA05 5k -5V 5 LT1009 Series U PACKAGE DESCRIPTIO H Package 2-Lead and 3-Lead TO-46 Metal Can (LTC DWG # 05-08-1340) 0.209 - 0.219 (5.309 - 5.537) 0.178 - 0.195 (4.521 - 4.953) 0.085 - 0.105 (2.159 - 2.667) 0.500 (12.700) MIN REFERENCE PLANE 0.050 (1.270) TYP PIN 1 * 0.016 - 0.021** (0.406 - 0.533) DIA 0.100 (2.540) TYP 0.050 (1.270) TYP FOR 3-LEAD PACKAGE ONLY 0.025 (0.635) MAX 45 0.028 - 0.048 (0.711 - 1.219) 0.036 - 0.046 (0.914 - 1.168) H02/03(TO-46) 1098 *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND 0.045" BELOW THE REFERENCE PLANE 0.016 - 0.024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 - 0.610) OBSOLETE PACKAGE MS8 Package 8-Lead Plastic MSOP (Reference LTC DWG # 05-08-1660) 0.118 0.004* (3.00 0.102) 8 7 6 5 0.118 0.004** (3.00 0.102) 0.193 0.006 (4.90 0.15) 1 2 3 4 0.043 (1.10) MAX 0.007 (0.18) 0 - 6 TYP 0.021 0.006 (0.53 0.015) SEATING PLANE 0.009 - 0.015 (0.22 - 0.38) 0.0256 (0.65) BSC * DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE 6 0.034 (0.86) REF 0.005 0.002 (0.13 0.05) MSOP (MS8) 1100 LT1009 Series U PACKAGE DESCRIPTIO S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) 0.189 - 0.197* (4.801 - 5.004) 8 7 6 5 0.150 - 0.157** (3.810 - 3.988) 0.228 - 0.244 (5.791 - 6.197) 1 0.010 - 0.020 x 45 (0.254 - 0.508) 2 3 0.053 - 0.069 (1.346 - 1.752) 0.008 - 0.010 (0.203 - 0.254) 0- 8 TYP 0.016 - 0.050 (0.406 - 1.270) 0.014 - 0.019 (0.355 - 0.483) TYP *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 4 0.004 - 0.010 (0.101 - 0.254) 0.050 (1.270) BSC SO8 1298 Z Package 3-Lead Plastic TO-92 (Similar to TO-226) (Reference LTC DWG # 05-08-1410) 0.060 0.005 (1.524 0.127) DIA 0.180 0.005 (4.572 0.127) 0.90 (2.286) NOM 0.180 0.005 (4.572 0.127) 0.500 (12.70) MIN 0.050 UNCONTROLLED (1.270) LEAD DIMENSION MAX 0.016 0.003 (0.406 0.076) 0.050 (1.27) BSC 0.060 0.010 (1.524 0.254) 3 2 1 0.140 0.010 (3.556 0.127) 5 NOM 0.015 0.002 (0.381 0.051) Z3 (TO-92) 0401 0.098 +016/-0.04 (2.5 +0.4/-0.1) 2 PLCS TO-92 TAPE AND REEL REFER TO TAPE AND REEL SECTION OF LTC DATA BOOK FOR ADDITIONAL INFORMATION 10 NOM Information 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 representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 7 LT1009 Series U TYPICAL APPLICATIO Low Noise 2.5V Buffered Reference 1F VIN 6V 10k 2 1k 10k 1k + 7 LT1001C 3 + 6 2.5V 4 20F 100k LT1009 - + 20F 1009 TA06 RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1019 Precision Series Reference Bandgap, 0.05%, 5ppm/C LT1236 Precision Series Reference 5V and 10V Zener-Based 5ppm/C, SO-8 Package LTC(R)1798 Micropower Low Dropout Series Reference 0.15% Max, 6.5A Supply Current LT1460 Micropower Precision Series Reference Bandgap, 130A Supply Current 10ppm/C, Available in SOT-23 LT1634 Micropower Precision Shunt Voltage Reference Bandgap 0.05%, 10ppm/C, 10A Supply Current LT1461 Micropower Precision Series Reference 0.04% Max, 3ppm/C Max, 35A Supply Current 8 Linear Technology Corporation 1009fc LT/TP 0501 1.5K REV C * PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408)432-1900 FAX: (408) 434-0507 www.linear-tech.com LINEAR TECHNOLOGY CORPORATION 1985