6.9V Precision Voltage Reference

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

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The LM329 temperature compensated 6.9V 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.

Applications

* Transducers

* A/D and D/A Converters

* Calibration Standards

* Instrumentation Reference

* Guaranteed 10ppm/°C Temperature Coefficient

* Guaranteed 1Ω Maximum Dynamic Impedance