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LM399 的PDF资料 下载 ,303392K

LM399 的货源和报价 LM399 的相关技术信息

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LM3914 LM393 LM393N LM393P LM431 LM4766 LM4766T lm4811

LM399 - Precision Reference

Features • Guaranteed 0.0001%/°C temperature coefficient • Low dynamic impedance - 0.5 • 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 • Guaranteed 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) General Description The LM199 series are precision, temperature-stabilized monolithic zeners offering temperature coefficients a factor of ten better than high quality reference zeners. More... Package Availability, Models, Samples & Pricing Part Number Package Factory Lead Time Models Budgetary Pricing Std Pack Size Package Marking Format Type Pins Spec. MSL Rating Peak Reflow RoHS Report Weeks Qty Qty $US each LM399AH TO-46 4 STD NOPB 1 1 NA NA RoHS Full production N/A   250+ $9.00 box of 500 NS ZXYTT LM399AH 6 weeks 1000 LM399H TO-46 4 STD NOPB 1 1 NA NA RoHS Full production N/A   250+ $3.38 box of 500 NS ZXYTT LM399H General Description The LM199 series are precision, temperature-stabilized 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 0.5 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. Application Notes Title Size in Kbytes Date AN-161: Application Note 161 IC Voltage Reference has 1 ppm per Degree Drift 176 Kbytes 10-Oct-02 View Online Download Receive via Email AN-184: Application Note 184 References for A/D Converters 88 Kbytes 3-Oct-02 View Online Download Receive via Email AN-184 (Japanese): Application Note 184 References for A/D Converters 124 Kbytes   If you have trouble printing or viewing PDF file(s), see Printing Problems.

Typical Application click for larger image Parametric Table     expand Parametric Table    collapse Reference Voltage 6.95 V Operating Current 0.5 mA Output Current 10 mA Reference Voltage 6.95 V Initial Accuracy (+/-) Max 2 % Tempco, max (ppm/C) 5 ppm Operating Current 0.5 mA Output Current 10 mA Temperature Min 0 deg C Temperature Max 70 deg C View Using Catalog Typical Performance click for larger image

Additional Resources Application Notes (see below) Block Diagram *click for larger image