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Features
- 6.95V Shunt Reference
- Guaranteed 0.5ppm/°C Temperature Coeffi cient
- Guaranteed 1Ω Maximum Dynamic Impedance
- Guaranteed 20µVRMS Maximum Noise
- Guaranteed Initial Tolerance of 2%
- Wide Operating Current Range
- Available in 4-Lead TO-46 Metal Can
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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.
Applications
- Precision voltage reference for multimeters
- Calibration equipment voltage standards
- Laboratory measurement equipment
- Industrial monitor/control instruments
- High accuracy data converters
Ask a Question
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Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
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LM399
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Data Sheet 1
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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LM399AH#PBF |
4-Lead TO-46
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| LM399H#PBF |
4-Lead TO-46
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- LM399AH#PBF
- Pin/Package Drawing
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4-Lead TO-46
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
- LM399H#PBF
- Pin/Package Drawing
-
4-Lead TO-46
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Aug 5, 2022
- 22_0180
Elgin Die Mold as Alternate Thermal Shield Supplier for LM399 TO46 Package.
LM399AH#PBF
PRODUCTION
LM399H#PBF
PRODUCTION
Mar 4, 2022
- 22_0025
Implement Laser Top Mark for TO Metal Can Packages Assembled in Team Pacific Corporation.
LM399AH#PBF
PRODUCTION
LM399H#PBF
PRODUCTION
Feb 20, 2022
- 22_0014
Final Packaging Changes for TO-92, TO-5 and TO-46
LM399AH#PBF
PRODUCTION
LM399H#PBF
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Aug 5, 2022
- 22_0180
Elgin Die Mold as Alternate Thermal Shield Supplier for LM399 TO46 Package.
LM399AH#PBF
PRODUCTION
LM399H#PBF
PRODUCTION
Mar 4, 2022
- 22_0025
Implement Laser Top Mark for TO Metal Can Packages Assembled in Team Pacific Corporation.
LM399AH#PBF
PRODUCTION
LM399H#PBF
PRODUCTION
Feb 20, 2022
- 22_0014
Final Packaging Changes for TO-92, TO-5 and TO-46
Software & Part Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
|
RECOMMENDED FOR NEW DESIGNS |
Oven-Compensated, Buried Zener, 7.05 V Voltage Reference |
