LM199AH

LM199, LM299, LM399, LM3999 www.ti.com SNVS751C – MAY 2004 – REVISED APRIL 2005 LM199/LM299/LM399 Precision Reference Check for Samples: LM199, LM299, LM399, LM3999 FEATURES 1 • • • • • • • • • 2 0.0001%/°C Temperature Coefficient Low Dynamic Impedance — 0.5Ω Initial Tolerance on Breakdown Voltage — 2% Sharp Breakdown at 400 μA Wide Operating Current — 500 μA to 10 mA Wide Supply Range for Temperature Stabilizer Low Noise Low Power for Stabilization — 300 mW at 25°C Proven Reliability, Low-Stress Packaging in TO-46 Integrated-Circuit Hermetic Package, for Low Hysteresis after Thermal Cycling. 33 Million Hours MTBF at TA = +25°C (TJ = +86°C) DESCRIPTION The LM199 series are precision, temperaturestabilized monolithic zeners offering temperature coefficients a factor of ten better than high quality reference zeners. Constructed on a single monolithic chip is a temperature stabilizer circuit and an active reference zener. The active circuitry reduces the dynamic impedance of the zener to about 0.5Ω and allows the zener to operate over 0.5 mA to 10 mA current range with essentially no change in voltage or temperature coefficient. Further, a new subsurface zener structure gives low noise and excellent long term stability compared to ordinary monolithic zeners. The package is supplied with a thermal shield to minimize heater power and improve temperature regulation. The LM199 series references are exceptionally easy to use and free of the problems that are often experienced with ordinary zeners. There is virtually no hysteresis in reference voltage with temperature cycling. Also, the LM199 is free of voltage shifts due to stress on the leads. Finally, since the unit is temperature stabilized, warm up time is fast. The LM199 can be used in almost any application in place of ordinary zeners with improved performance. Some ideal applications are analog to digital converters, calibration standards, precision voltage or current sources or precision power supplies. Further in many cases the LM199 can replace references in existing equipment with a minimum of wiring changes. The LM199 series devices are packaged in a standard hermetic TO-46 package inside a thermal shield. The LM199 is rated for operation from −55°C to +125°C while the LM299 is rated for operation from −25°C to +85°C and the LM399 is rated from 0°C to +70°C. Connection Diagram Figure 1. Metal Can Package (TO-46) Top View Package Number NER0004D 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2004–2005, Texas Instruments Incorporated LM199, LM299, LM399, LM3999 SNVS751C – MAY 2004 – REVISED APRIL 2005 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) (2) Temperature Stabilizer Voltage LM199/LM299/LM399 40V Reverse Breakdown Current 20 mA Forward Current, LM199/LM299/LM399 Reference to Substrate Voltage V(RS) 1 mA (3) 40V −0.1V Operating Temperature Range LM199 −55°C to +125°C LM299 −25°C to +85°C −0°C to +70°C LM399 −55°C to +150°C Storage Temperature Range Soldering Information, TO-46 package (10 sec.) (1) (2) (3) +300°C “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. Specifications for Military/Aerospace products are not contained in this datasheet. Refer to the following Reliability Electrical Test Specifications documents: MNLM199A-X and SMD#5962-88561. The substrate is electrically connected to the negative terminal of the temperature stabilizer. The voltage that can be applied to either terminal of the reference is 40V more positive or 0.1V more negative than the substrate. Electrical Characteristics (1) (2) Parameter LM299H Conditions Reverse Breakdown Voltage 0.5 mA ≤ IR ≤ 10 mA Reverse Breakdown Voltage Change with Current 0.5 mA ≤ IR ≤ 10 mA Reverse Dynamic Impedance IR = 1 mA Reverse Btreakdown Temperature Coefficient RMS Noise −25°C≤TA≤85°C LM299 0°C≤TA≤+70°C LM399 LM399H Typ Max Min Typ Max 6.8 6.95 7.1 6.6 6.95 7.3 V 6 9 6 12 mV 0.5 1 0.5 1.5 Ω 0.00003 0.0001 0.00003 0.0002 %/°C 7 50 μV 10 Hz ≤ f ≤ 10 kHz 7 Long Term Stability Stabilized, 22°C≤TA≤28°C, 1000 Hours, IR=1 mA±0.1% 20 Temperature Stabilizer TA=25°C, Still Air, VS=30V 8.5 14 Supply Current TA =− 55°C 22 28 Temperature Stabilizer Supply Voltage Warm-Up Time to 0.05% Initial Turn-on Current (1) (2) (3) 2 9 VS = 30V, TA = 25°C 9≤VS≤40, TA=+25°C (3) Units Min 20 20 40 3 140 %/°C 8.5 9 ppm 15 mA 40 V 3 200 140 sec. 200 mA These specifications apply for 30V applied to the temperature stabilizer and −55°C≤TA≤+125°C for the LM199; −25°C≤TA≤+85°C for the LM299 and 0°C≤TA≤+70°C for the LM399. A military data sheet is available for the LM199AH/833 and LM199AH-SMD (SMD#5962-88561) upon request. This initial current can be reduced by adding an appropriate resistor and capacitor to the heater circuit. See the performance characteristic graphs to determine values. Submit Documentation Feedback Copyright © 2004–2005, Texas Instruments Incorporated Product Folder Links: LM199 LM299 LM399 LM3999 LM199, LM299, LM399, LM3999 www.ti.com SNVS751C – MAY 2004 – REVISED APRIL 2005 Electrical Characteristics (1) (2) Parameter LM199AH Conditions Reverse Breakdown Voltage 0.5 mA ≤ IR ≤ 10 mA Reverse Breakdown Voltage 0.5 mA ≤ IR ≤ 10 mA LM399AH Units Min Typ Max Min Typ Max 6.8 6.95 7.1 6.6 6.95 7.3 V 6 9 6 12 mV 0.5 1.5 Change with Current Reverse Dynamic Impedance IR = 1 mA Reverse Breakdown Temperature Coefficient −55°C≤TA≤+85°C LM199A (3) +85°C≤TA≤+125°C 0°C≤TA≤+70°C 0.5 1 0.00002 0.00005 0.0005 0.0010 10 Hz ≤ f ≤ 10 kHz 7 Long Term Stability Stabilized, 22°C≤TA≤28°C, 1000 Hours, IR=1 mA±0.1% 20 Temperature Stabilizer Supply Current TA=25°C, Still Air, VS=30V TA =− 55°C Temperature Stabilizer Supply Voltage Warm-Up Time to 0.05% Initial Turn-on Current (1) (2) (3) (4) VS = 30V, TA = 25°C 20 14 22 28 40 3 (4) 140 0.00003 0.0001 %/°C 7 50 μV 20 8.5 9 9≤VS≤40, TA=+25°C, %/°C LM399A RMS Noise 8.5 9 ppm 15 40 3 200 Ω %/°C 140 mA V sec. 200 mA These specifications apply for 30V applied to the temperature stabilizer and −55°C≤TA≤+125°C for the LM199; −25°C≤TA≤+85°C for the LM299 and 0°C≤TA≤+70°C for the LM399. A military data sheet is available for the LM199AH/833 and LM199AH-SMD (SMD#5962-88561) upon request. Do not wash the LM199 with its polysulfone thermal shield in TCE. This initial current can be reduced by adding an appropriate resistor and capacitor to the heater circuit. See the performance characteristic graphs to determine values. Functional Block Diagram Figure 2. LM199/LM299/LM399 Copyright © 2004–2005, Texas Instruments Incorporated Product Folder Links: LM199 LM299 LM399 LM3999 Submit Documentation Feedback 3 LM199, LM299, LM399, LM3999 SNVS751C – MAY 2004 – REVISED APRIL 2005 www.ti.com Typical Performance Characteristics 4 Reverse Characteristics Reverse Voltage Change Figure 3. Figure 4. Dynamic Impedance Zener Noise Voltage Figure 5. Figure 6. Stabilization Time Heater Current Figure 7. Figure 8. Submit Documentation Feedback Copyright © 2004–2005, Texas Instruments Incorporated Product Folder Links: LM199 LM299 LM399 LM3999 LM199, LM299, LM399, LM3999 www.ti.com SNVS751C – MAY 2004 – REVISED APRIL 2005 Typical Performance Characteristics (continued) Initial Heater Current Heater Current (To Limit This Surge, See Next Graph) Figure 9. Figure 10. Heater Surge Limit Resistor vs Minimum Supply Voltage at Various Minimum Temperatures Response Time *Heater must be bypassed with a 2 μF or larger tantalum capacitor if resistors are used. Figure 11. Figure 12. Low Frequency Noise Voltage Figure 13. Copyright © 2004–2005, Texas Instruments Incorporated Product Folder Links: LM199 LM299 LM399 LM3999 Submit Documentation Feedback 5 LM199, LM299, LM399, LM3999 SNVS751C – MAY 2004 – REVISED APRIL 2005 www.ti.com TYPICAL APPLICATIONS Figure 14. Single Supply Operation Figure 15. Split Supply Operation Figure 16. Negative Heater Supply with Positive Reference Figure 17. Buffered Reference With Single Sypply Figure 18. Positive Current Source Figure 19. Standard Cell Replacement 6 Submit Documentation Feedback Copyright © 2004–2005, Texas Instruments Incorporated Product Folder Links: LM199 LM299 LM399 LM3999 LM199, LM299, LM399, LM3999 www.ti.com SNVS751C – MAY 2004 – REVISED APRIL 2005 Figure 20. Negative Current Source *Warm-up time 10 seconds; intermittent operation does not degrade long term stability. Figure 21. Square Wave Voltage Reference Figure 22. Portable Calibrator* *Clamp will sink 5 mA when input goes more positive than reference Figure 23. 14V Reference Figure 24. Precision Clamp* Copyright © 2004–2005, Texas Instruments Incorporated Product Folder Links: LM199 LM299 LM399 LM3999 Submit Documentation Feedback 7 LM199, LM299, LM399, LM3999 SNVS751C – MAY 2004 – REVISED APRIL 2005 www.ti.com Figure 25. 0V to 20V Power Reference Figure 26. Bipolar Output Reference Schematic Diagrams Figure 27. Temperature Stabilizer 8 Submit Documentation Feedback Copyright © 2004–2005, Texas Instruments Incorporated Product Folder Links: LM199 LM299 LM399 LM3999 LM199, LM299, LM399, LM3999 www.ti.com SNVS751C – MAY 2004 – REVISED APRIL 2005 Figure 28. Reference Copyright © 2004–2005, Texas Instruments Incorporated Product Folder Links: LM199 LM299 LM399 LM3999 Submit Documentation Feedback 9 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. 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