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LM399

Features: 6.95V Shunt Reference Guaranteed 0.5ppm/°C Temperature Coeffi cient Guaranteed 1 Maximum Dynamic Impedance Guaranteed 20VRMS Maximum Noise Guaranteed Initial Tolerance of 2% Wide Operating Current Range Available in 4-Lead TO-46 Metal CanApplication Precision Voltage Reference for Multi...

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SeekIC No. : 004395536 Detail

LM399: Features: 6.95V Shunt Reference Guaranteed 0.5ppm/°C Temperature Coeffi cient Guaranteed 1 Maximum Dynamic Impedance Guaranteed 20VRMS Maximum Noise Guaranteed Initial Tolerance of 2% Wide Operatin...

LM399 Data Sheet

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Part Number:
LM399
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

6.95V Shunt Reference
Guaranteed 0.5ppm/°C Temperature Coeffi cient
Guaranteed 1 Maximum Dynamic Impedance
Guaranteed 20VRMS Maximum Noise
Guaranteed Initial Tolerance of 2%
Wide Operating Current Range
Available in 4-Lead TO-46 Metal Can




Application

Precision Voltage Reference for Multimeters
Calibration Equipment Voltage Standards
Laboratory Measurement Equipment
Industrial Monitor/Control Instruments
High Accuracy Data Converters




Specifications

Temperature Stabilizer .................................................40V
Reverse Breakdown Current ......................................20mA
Forward Current ..........................................................1mA
Reference to Substrate Voltage, VRS (Note 2) ..........0.1V
Operating Temperature Range
LM199/LM199A (OBSOLETE) ................. 55°C to 125°C
LM399/LM399A ........................................... 0°C to 70°C
Storage Temperature Range
LM199/LM199A (OBSOLETE) ................ 65°C to 150°C
LM399/LM399A .................................... 65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................... 300°C




Description

The LM199/LM399 precision shunt reference features excellent temperature stability over a wide range of voltage, temperature and operating current conditions. A stabilizing heater is incorporated with the active Zener on a monolithic substrate which nearly eliminates changes in voltage with temperature. The subsurface Zener operates over a current range of 0.5mA to 10mA, and offers minimal noise and excellent long-term stability.

Ideal applications for the LM199/LM399 include digital voltmeters, precision calibration equipment, current sources and a variety of other precision low cost references. A 10V buffered reference application is shown below.






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