LM399
PRODUCTIONPrecision Reference
- Part Models
- 2
- 1ku List Price
- Starting From $6.22
Part Details
- 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
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
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 2
Spec Notice 1
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 | ||
| LM399H#PBF | 4-Lead TO-46 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 5, 2022 - 22_0180 Elgin Die Mold as Alternate Thermal Shield Supplier for LM399 TO46 Package. |
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| 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. |
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| LM399AH#PBF | PRODUCTION | |
| LM399H#PBF | PRODUCTION | |
|
Feb 20, 2022 - 22_0014 Final Packaging Changes for TO-92, TO-5 and TO-46 |
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| LM399AH#PBF | PRODUCTION | |
| LM399H#PBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| ADR1399 | RECOMMENDED FOR NEW DESIGNS | Oven-Compensated, Buried Zener, 7.05 V Voltage Reference |