LM329AZ

LM329AZ

  • Description:IC VREF SHUNT 6.9V TO92-3
  • Series:-
  • Mfr:Analog Devices Inc.
  • Package:Bulk

SKU:5abaa8cfdde8 Category: Brand:

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Product Detailed Parameters

  • Description:IC VREF SHUNT 6.9V TO92-3
  • Series:-
  • Mfr:Analog Devices Inc.
  • Package:Bulk
  • Output Type:Fixed
  • Voltage - Output (Min/Fixed):6.9V
  • Voltage - Output (Max):-
  • Current - Output:15 mA
  • Operating Temperature:0°C ~ 70°C
  • Mounting Type:Through Hole
  • Package / Case:TO-226-3, TO-92-3 (TO-226AA)
  • Supplier Device Package:TO-92-3
  • Grade:-
  • Qualification:-

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LM329AZ

Overview

The LM329AZ is a temperature-compensated 6.9V precision shunt voltage reference manufactured by Analog Devices Inc. It operates within an ambient temperature range of 0°C to 70°C and utilizes a buried zener design for low noise. Key electrical specifications include a reverse breakdown voltage of 6.7V to 7.2V, a maximum dynamic impedance of 1W, and wideband noise of 20mV RMS. The device supports an operating current range from 0.6mA to 15mA with a guaranteed temperature coefficient of 10ppm/°C.

Feature Summary

  • Temperature compensated 6.9V zener reference providing excellent stability over time and temperature
  • Low dynamic impedance achieved through a high gain shunt regulator integrated around the zener
  • Buried zener design eliminates surface noise phenomena associated with ordinary zeners

Applications

  • A/D and D/A converters
  • Calibration standards
  • Instrumentation references
  • Transducers

Procurement Notes

Verify component authenticity and datasheet alignment before procurement. Confirm that the specific ordering suffix matches the required package style and temperature grade. Ensure supply chain sources are authorized distributors to guarantee part integrity and traceability.

Selection Notes

Select this component when a stable 6.9V reference is required in through-hole TO-92 packages. Consider the 10ppm/°C temperature coefficient and 0.6mA to 15mA operating current range against application needs. Evaluate thermal management requirements based on the specified junction-to-ambient thermal resistance.

Part Context

The LM329AZ belongs to the LM129/LM329 family of precision voltage references. This series offers multiple temperature coefficient grades and package options, including metal cans and plastic TO-92 styles. The LM329 variant specifically targets commercial temperature ranges, distinguishing it from the extended range LM129.

Replacement Considerations

Consult Linear Technology marketing for availability of alternate source parts if the LM329AZ is discontinued. The datasheet notes the Z package as an alternative source option for obsolete packages.

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