LM136AH-2.5

LM136-2.5/LM336-2.5 2.5V Reference FEATURES s s s s DESCRIPTIO Guaranteed Temperature Stability Maximum 0.6Ω Dynamic Impedance Adjustable for Minimum Temperature Coefficient Wide Operating Current Range APPLICATIO S s s s s s Reference for 5V Systems 8-Bit A/D and D/A Reference Digital Voltmeters Current Loop Measurement and Control Systems Power Supply Monitor The LM136-2.5 is a general purpose shunt regulator diode designed to operate over a wide current range while maintaining good stability with time and temperature. The third terminal allows either the temperature coefficient to be minimized or the reference voltage to be adjusted without changing the temperature coefficient. Because it operates as a shunt regulator it can be used equally well as a positive or negative reference. The LM136-2.5 is available with initial tolerances as low as 1% in either a TO-46 metal can for hermetic requirements or a low cost TO-92 plastic package. Linear’s advanced design, test and process techniques have optimized the LM136-2.5 to achieve superior performance and reliability over previous designs. For more demanding precision reference applications requiring very low initial tolerance and temperature coefficients, consult the LT1009 data sheet. A typical 2.5V reference with trim is shown below. , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIO 2.5V Reference 3.5 5V TO 35V 3.6k OUTPUT LM336-2.5 10k* TRIM * DOES NOT AFFECT TEMPERATURE COEFFICIENT 136/336 TA01a TA = 25°C REVERSE VOLTAGE CHANGE (mV) 3.0 2.5 2.0 1.5 1.0 0.5 0 0 2 4 8 6 REVERSE CURRENT (mA) 10 U Reverse Voltage Change 136/336 TA01b U U 1 LM136-2.5/LM336-2.5 ABSOLUTE AXI U RATI GS Operating Temperature Range LM136-2.5 (OBSOLETE) .............. –55°C to 125°C LM336-2.5 .............................................. 0°C to 70°C Storage Temperature Range ................. – 65°C to 150°C PACKAGE/ORDER I FOR ATIO BOTTOM VIEW ORDER PART NUMBER LM136H-2.5 LM136AH-2.5 LM336H-2.5 LM336AH-2.5 ADJ + – H PACKAGE 3-LEAD TO-46 METAL CAN TJMAX = 150°C, θJA = 440°C/W (NOTE 2) OBSOLETE PACKAGE Consider the Z Packages for Alternate Source Consult LTC Marketing for parts specified with wider operating temperature ranges. The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) SYMBOL VZ PARAMETER Reverse Breakdown Voltage CONDITIONS TA = 25°C, IR = 1mA LM136/LM336 LM136A/LM336B 400µA ≤ IR ≤ 10mA TA = 25°C TMIN ≤ TA ≤ TMAX IR = 1mA TA =25°C TMIN ≤ TA ≤ TMAX VR Adjusted to 2.490V, IR = 1mA, TMIN ≤ TA ≤ TMAX (See Figure 1) TA = 25°C ± 0 .1 ° C, IR = 1mA LM136/LM136A MIN TYP MAX 2.440 2.465 2.490 2.490 2.6 3.0 0.2 0.4 12 20 V+ R 1mA * D1† 5k D2† † ELECTRICAL CHARACTERISTICS ∆VZ ∆IR rZ Reverse Breakdown Change with Current Reverse Dynamic Impedance ∆VZ ∆Temp ∆VZ ∆Time Temperature Stability Long Term Stability Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LT1009 is an improved, low cost, pin for pin replacement for the “A” and “B” versions. For further information consult the LT1009 data sheet. 2 U U W WW U W (Note 1) Lead Temperature (Soldering, 10 sec).................. 300°C Reverse Current .................................................... 15mA Forward Current ................................................... 10mA BOTTOM VIEW ADJ + – ORDER PART NUMBER LM336Z-2.5 LM336BZ-2.5 Z PACKAGE 3-LEAD PLASTIC TO-92 TJMAX = 150°C, θJA = 160°C/W (NOTE 2) MIN LM336/LM336B TYP MAX 2.490 2.490 2.6 3.0 0.2 0.4 1.8 20 2.590 2.540 10 12 1.0 1.4 6 UNITS V V mV mV Ω Ω mV ppm/kHr 2.540 2.515 6 10 0.6 1.0 18 2.390 2.440 q q q 2.490V D1, D2 1N4148 * ADJUST TO 2.490 ANY SILICON SIGNAL DIODE 136/336 F01 Figure 1. Adjusting the LM336 for Minimum Temperature Coefficient LM136-2.5/LM336-2.5 TYPICAL PERFOR A CE CHARACTERISTICS Reverse Characteristics 10 –1 1.2 1.0 FORWARD VOLTAGE (V) REVERSE CURRENT (A) REVERSE VOLTAGE (V) 10 –2 0.8 0.6 0.4 0.2 Tj = – 55°C 10 –5 0.6 1.0 1.8 2.2 1.4 REVERSE VOLTAGE (V) 2.6 0 0.001 0.01 0.1 1 FORWARD CURRENT (mA) 10 136/336 G02 136/336 • G01 136/336 G03 10 –3 Tj = 25°C 10 –4 Tj = 125°C Dynamic Impedance 100 IR = 1mA –55°C ≤ Tj ≤ 125°C 250 DYNAMIC IMPEDANCE (Ω) NOISE (nV/√Hz) 10 VOLTAGE SWING (V) 1 0.1 10 100 1k 10k FREQUENCY (Hz) 100k 136/336 G04 SCHE ATIC DIAGRA Q1 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. W UW Q2 Q3 Forward Characteristics Tj = 25°C 2.59 2.57 2.55 2.53 2.51 2.49 2.47 2.45 2.43 2.41 2.39 Temperature Drift IR = 1mA 2.37 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) Zener Noise Voltage IR = 1mA Tj = 25°C Response Time 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 12 8 4 INPUT OUTPUT 5.1k OUTPUT 200 150 100 INPUT 50 10 100 1k FREQUENCY (Hz) 10k 100k 136/336 G05 0 0 1 TIME (µs) 20 136/336 G06 W + Q17 50k Q9 24k Q8 20pF Q7 10k 30pF Q10 Q11 Q15 30k Q4 Q6 Q12 Q13 Q14 6.6k ADJ Q16 500Ω 24k 6.6k Q5 2k 1.1k Q18 – 136/336 SD 3 LM136-2.5/LM336-2.5 TYPICAL APPLICATIO S Wide Supply Range, Reference 3.6V TO 40V V+ LM334 V– Low Temperature Coefficient Power Regulator VIN IN LT317A OUT ADJ VOUT 1.2k 5V R 62Ω 1N4148 LM336 R2* 10k 1N4148 *ADJUST R2 FOR 3.75V ACROSS R1 LM336-2.5 136/336 TA02 PACKAGE DESCRIPTIO H Package 2-Lead and 3-Lead TO-46 Metal Can (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) REFERENCE PLANE 0.025 (0.635) MAX 0.500 (12.70) MIN 0.050 UNCONTROLLED (1.270) LEAD DIMENSION MAX 0.016 – 0.021** (0.406 – 0.533) DIA 0.050 (1.270) TYP 0.100 (2.540) TYP PIN 1 FOR 3-LEAD PACKAGE ONLY 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 0.050 (1.27) BSC *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 RELATED PARTS PART NUMBER LT1009 DESCRIPTION Precision 2.5V Shunt Reference COMMENTS 0.2% Max Initial Tolerance 136336fa LT/CP 0801 1.5K REV A • PRINTED IN USA 4 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 q FAX: (408) 434-0507 q U U Switchable ±1.25V Bipolar Reference 5V 5k Low Noise 2.5V Buffered Reference 1µF VIN ≥ 6V 10k 5k 2N3904 R1 375Ω –5V 10k 1% OUT 9.76k 1% 1k 10k 1N4148 1k 2 – + 7 OP-07CH 6 2.5V 3 * 2N3906 *LM336-2.5 5k –5V + * 100k 4 500Ω 20µF 10k 2k 136/336 TA03 + *LM336Z-2.5 1N4148 136/336 TA04 20µF 136/336 TA05 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) 0.180 ± 0.005 (4.572 ± 0.127) 0.90 (2.286) NOM 5° NOM 0.016 ± 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 PLCS Z3 (TO-92) 0401 0.060 ± 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 INFORMATION 10° NOM www.linear.com © LINEAR TECHNOLOGY CORPORATION 1986