LM329 Overview
The LM329 is a precision multi-current temperature-pensated 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%/...
LM329 Key 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

