Features and Benefits

  • Guaranteed 10 ppm/°C temperature coefficient
  • Guaranteed 1.0 ohms max. dynamic impedance
  • Guaranteed 20µV max. wideband noise
  • Wide operating current range 0.6mA to 15mA

Product Details

Most H (Metal Can), J (Ceramic), and K (Metal Can) Packages Are Now Obsolete.

Download Complete Datasheet for Details.

The LM329 temperature compensated 6.9 Volt Zener references provide excellent stability over time and temperature, very low dynamic impedance and a wide operating current range. The device achieves low dynamic impedance by incorporating a high gain shunt regulator around the Zener. The excellent noise performance of the device is achieved by using a "buried Zener" design which eliminates surface noise phenomenon associated with ordinary Zeners. To serve a wide variety of applications, the LM129 is available in several temperature coefficient grades and two package styles. A 20mA positive current source application is shown below.


  • Transducers
  • A/D and D/A Converters
  • Calibration Standards
  • Instrumentation Reference

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

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.

PCN-PDN Information

Sample & Buy

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