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LM329 - Precision Reference

This page provides the datasheet information for the LM329, a member of the LM329AH Precision Reference family.

Datasheet Summary

Description

The LM329 is a precision multi-current temperature-compensated 6.9V zener reference with dynamic impedance a factor of 10 to 100 less than discrete diodes.

Features

  • 0.6 mA to 15 mA operating current.
  • 0.8Ω dynamic impedance at any current.
  • Available with temperature coefficient of 0.01%/°C.
  • 7μV wideband noise.
  • 5% initial tolerance.
  • 0.002% long term stability.
  • Low cost.
  • Subsurface zener Connection Diagram Typical.

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Datasheet preview – LM329

Datasheet Details

Part number LM329
Manufacturer National Semiconductor
File Size 174.40 KB
Description Precision Reference
Datasheet download datasheet LM329 Datasheet
Additional preview pages of the LM329 datasheet.

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Full PDF Text Transcription

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LM329 Precision Reference January 17, 2008 LM329 Precision Reference General Description The LM329 is a precision multi-current temperature-compensated 6.9V zener reference with dynamic impedance a factor of 10 to 100 less than discrete diodes. Constructed in a single silicon chip, the LM329 uses active circuitry to buffer the internal zener allowing the device to operate over a 0.5 mA to 15 mA range with virtually no change in performance. The LM329 is available with a temperature coefficients of 0.01%/ °C. This reference also has excellent long term stability and low noise. A new subsurface breakdown zener used in the LM329 gives lower noise and better long-term stability than conventional IC zeners.
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