LT1009IS8

LT1009 Series 2.5V Reference FEATURES ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO Maximum Initial Tolerance: 0.2% Guaranteed Temperature Stability Maximum 0.6Ω Dynamic Impedance Wide Operating Current Range Directly Interchangeable with LM136 for Improved Performance No Adjustments Needed for Minimum Temperature Coefficient Available in 8-Lead SO and MSOP Packages and 3-Lead TO-92 Package The LT®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. 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. All other trademarks are the property of their respective owners. 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 TYPICAL APPLICATION 2.5V Reference 5V TO 35V 3.6k REFERENCE VOLTAGE (V) 2.53 2.52 OUTPUT 2.51 2.50 2.49 2.48 1009 TA01 LT1009 10k* TRIM *DOES NOT AFFECT TEMPERATURE COEFFICIENT. ± 5% TRIM RANGE 2.47 –50 –25 U Output Voltage GUARANTEED MAXIMUM TYPICAL GUARANTEED MINIMUM 50 25 75 0 TEMPERATURE (°C) 100 125 1009 TA02 U U 1009fd 1 LT1009 Series ABSOLUTE AXI U RATI GS Reverse Current .................................................... 20mA Forward Current ................................................... 10mA Storage Temperature Range ................. – 65°C to 150°C Lead Temperature (Soldering, 10 sec).................. 300°C PACKAGE/ORDER I FOR ATIO BOTTOM VIEW ADJ + – ORDER PART NUMBER TOP VIEW LT1009MH LT1009CH H PACKAGE 3-LEAD TO-46 METAL CAN TJMAX = 150°C, θJA = 440°C/ W, θ JC = 80°C/ W OBSOLETE PACKAGE Consider the MS8, S8 or Z Packages for Alternate Source TOP VIEW NC 1 NC 2 NC 3 (–) 4 8 7 6 5 (+) NC (+) ADJ ORDER PART NUMBER LT1009S8 LT1009IS8 S8 PART MARKING 1009 1009I S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 150°C, θJA = 190°C/ W Consult LTC Marketing for parts specified with wider operating temperature ranges. AVAILABLE OPTIO S TEMPERATURE 0°C to 70°C – 40°C to 85°C – 55°C to 125°C ACCURACY (%) 0.20 0.40 0.20 0.40 0.20 TEMPERATURE COEFFICIENT (ppm/°C) 25 25 35 35 35 LT1009MH TO-46 (H) OBSOLETE LT1009CH LT1009CMS8 LT1009S8 LT1009IZ LT10098IS8 PACKAGE STYLE MSOP-8 SO-8 (MS8) (S8) TO-92 (Z) LT1009CZ 2 U U W WW U U W (Note 1) Operating Temperature Range LT1009/LT1009C .................................. 0°C to 70°C LT1009I ........................................... – 40°C to 85°C LT1009M (OBSOLETE) ................... –55°C to 125°C ORDER PART NUMBER 8 7 6 5 (+) NC (+) ADJ NC NC NC (–) 1 2 3 4 LT1009CMS8 MS8 PART MARKING LTQZ MS8 PACKAGE 8-LEAD PLASTIC MSOP TJMAX = 150°C, θJA = 250°C/ W BOTTOM VIEW ADJ + – ORDER PART NUMBER LT1009CZ LT1009IZ Z PACKAGE 3-LEAD PLASTIC TO-92 TJMAX = 100°C, θJA = 160°C/ W 1009fd LT1009 Series ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER VZ ∆VZ ∆IR rZ Reverse Breakdown Voltage Reverse Breakdown Change with Current Reverse Dynamic Impedance Temperature Stability ∆VZ ∆Temp ∆VZ ∆Time CONDITIONS TA = 25°C, IR = 1mA H, Z Pkg MS, S Pkg 400µA ≤ IR ≤ 10mA ● The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. MIN LT1009M TYP MAX MIN LT1009I TYP MAX LT1009/LT1009C MIN TYP MAX UNITS V V mV mV Ω Ω mV ppm/°C ppm/°C ppm/°C ppm/kHr 2.485 2.500 2.505 2.6 3.0 0.2 0.4 15 25 20 6 10 0.6 1.0 15 25 35 2.495 2.500 2.505 2.495 2.500 2.505 2.49 2.50 2.51 2.49 2.50 2.51 2.6 3.0 0.2 0.4 15 10 12 1.0 1.4 15 25 35 2.6 3.0 0.2 0.4 1.8 15 10 12 1.0 1.4 4 25 IR = 1mA ● TMIN ≤ TA ≤ TMAX ● Average Temperature 0°C ≤ TA ≤ 70°C Coefficient (Notes 2, 3) –40°C ≤ TA ≤ 85°C –55°C ≤ TA ≤ 125°C Long-Term Stability TA = 25°C ±0.1°C, IR = 1mA 20 20 Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Guaranteed by Design. Note 3: Average temperature coefficient is defined as the total voltage change divided by the specified temperature change. TYPICAL PERFOR A CE CHARACTERISTICS Reverse Characteristics 10 –1 1.0 FORWARD VOLTAGE (V) REVERSE CURRENT (A) REVERSE VOLTAGE CHANGE (mV) 10 –2 10 –3 TJ = 25°C 10 –4 TJ = 125°C TJ = – 55°C 10 –5 0.5 1.0 1.8 2.2 1.4 REVERSE VOLTAGE (V) 2.6 1009 G01 UW Forward Characteristics 1.2 TJ = 25°C 4 5 Reverse Voltage Change 0.8 0.6 0.4 0.2 0 0.001 3 2 1 0 0.01 0.1 1 10 1009 G02 0 4 FORWARD CURRENT (mA) 12 16 8 REVERSE CURRENT (mA) 20 1009 G03 1009fd 3 LT1009 Series TYPICAL PERFOR A CE CHARACTERISTICS Dynamic Impedance 100 IR = 1mA –55°C ≤ TJ ≤ 125°C 250 IR = 1mA TJ = 25°C DYNAMIC IMPEDANCE (Ω) VOLTAGE SWING (V) NOISE (nV/√Hz) 10 1 0.1 10 100 1k 10k FREQUENCY (Hz) SCHE ATIC DIAGRA Q2 Q1 Q4 Q6 Q3 4 W UW 1009 G04 Output Noise Voltage 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 Response Time OUTPUT 200 5k INPUT OUTPUT 150 100 10 4 INPUT 0 1 TIME (µs) 20 1009 G06 100k 50 0 10 100 1k FREQUENCY (Hz) 1009 G05 10k 100k W + Q7 Q11 24k Q8 Q7 20pF 10k 30pF Q10 24k 6.6k 500Ω Q9 30k 6.6k Q12 720Ω ADJ Q5 Q13 – 1009 SD 1009fd LT1009 Series TYPICAL APPLICATIO S U Wide Supply Range, Adjustable Reference 3.6V TO 40V V+ LM334 V– R 62Ω Low Temperature Coefficient Power Regulator VIN IN LT317A OUT ADJ VOUT 1.2k 375Ω LT1009 10k 1009 TA03 LT1009 2k 1009 TA04 Switchable ± 1.25V Bipolar Reference 5V 5k 5V –5V 5k LT1009 10k 1% OUT 9.76k 1% 500Ω 1009 TA05 5k –5V 1009fd 5 LT1009 Series PACKAGE DESCRIPTIO U 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) 0.500 (12.700) MIN * 0.085 – 0.105 (2.159 – 2.667) 0.050 (1.270) TYP 0.100 (2.540) TYP PIN 1 FOR 3-LEAD PACKAGE ONLY 0.025 (0.635) MAX 45° 0.036 – 0.046 (0.914 – 1.168) 0.028 – 0.048 (0.711 – 1.219) H02/03(TO-46) 1098 0.050 (1.270) TYP REFERENCE PLANE 0.016 – 0.021** (0.406 – 0.533) DIA *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) 0.889 ± 0.127 (.035 ± .005) 5.23 (.206) MIN 3.20 – 3.45 (.126 – .136) 0.42 ± 0.038 (.0165 ± .0015) TYP 0.65 (.0256) BSC 3.00 ± 0.102 (.118 ± .004) (NOTE 3) 8 7 65 0.52 (.0205) REF RECOMMENDED SOLDER PAD LAYOUT DETAIL “A” 0° – 6° TYP 4.90 ± 0.152 (.193 ± .006) 0.254 (.010) GAUGE PLANE 3.00 ± 0.102 (.118 ± .004) (NOTE 4) 0.53 ± 0.152 (.021 ± .006) DETAIL “A” 0.18 (.007) SEATING PLANE 1 23 4 1.10 (.043) MAX 0.86 (.034) REF 0.22 – 0.38 (.009 – .015) TYP NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX 0.65 (.0256) BSC 0.127 ± 0.076 (.005 ± .003) MSOP (MS8) 0204 1009fd 6 LT1009 Series PACKAGE DESCRIPTIO U S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .045 ±.005 .050 BSC 8 .189 – .197 (4.801 – 5.004) NOTE 3 7 6 5 .160 ±.005 .228 – .244 (5.791 – 6.197) .150 – .157 (3.810 – 3.988) NOTE 3 1 2 3 4 .053 – .069 (1.346 – 1.752) 0°– 8° TYP .004 – .010 (0.101 – 0.254) .014 – .019 (0.355 – 0.483) TYP .050 (1.270) BSC SO8 0303 .245 MIN .030 ±.005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 × 45° (0.254 – 0.508) .008 – .010 (0.203 – 0.254) .016 – .050 (0.406 – 1.270) NOTE: 1. DIMENSIONS IN INCHES (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) Z Package 3-Lead Plastic TO-92 (Similar to TO-226) (Reference LTC DWG # 05-08-1410) .060 ± .005 (1.524± 0.127) DIA .180 ± .005 (4.572 ± 0.127) .180 ± .005 (4.572 ± 0.127) .90 (2.286) NOM .500 (12.70) MIN .050 UNCONTROLLED (1.270) LEAD DIMENSION MAX 5° NOM .050 (1.27) BSC .016 ± .003 (0.406 ± 0.076) .015 ± .002 (0.381 ± 0.051) Z3 (TO-92) 0801 .060 ± .010 (1.524 ± 0.254) .098 +.016/–.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 3 2 1 .140 ± .010 (3.556 ± 0.127) 10° NOM 1009fd 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 TYPICAL APPLICATIO U Low Noise 2.5V Buffered Reference 1µF VIN ≥ 6V 10k 1k 10k 1k 2 – + 7 6 2.5V LT1001C 3 4 + 100k LT1009 20µF 20µF + 1009 TA06 RELATED PARTS PART NUMBER LT1019 LT1236 LTC®1798 LT1460 LT1634 LT1461 DESCRIPTION Precision Series Reference Precision Series Reference Micropower Low Dropout Series Reference Micropower Precision Series Reference Micropower Precision Shunt Voltage Reference Micropower Precision Series Reference COMMENTS Bandgap, 0.05%, 5ppm/°C 5V and 10V Zener-Based 5ppm/°C, SO-8 Package 0.15% Max, 6.5µA Supply Current Bandgap, 130µA Supply Current 10ppm/°C, Available in SOT-23 Bandgap 0.05%, 10ppm/°C, 10µA Supply Current 0.04% Max, 3ppm/°C Max, 35µA Supply Current 1009fd 8 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● LT/LWI/LT 0505 REV D • PRINTED IN USA www.linear.com © LINEAR TECHNOLOGY CORPORATION 1985