●General Description
●The LM129 and LM329 family are precision multi-current temperature-compensated 6.9V zener references with dynamic impedances a factor of 10 to 100 less than discrete diodes. Constructed in a single silicon chip, the LM129 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 LM129 and LM329 are available with selected temperature coefficients of 0.001, 0.002, 0.005 and 0.01%/˚C. These references also have excellent long term stability and low noise.
●Features
●0.6 mA to 15 mA operating current
●0.6Ω dynamic impedance at any current
●Available with temperature coefficients of 0.001%/˚C
●7µV wideband noise
●5% initial tolerance
●0.002% long term stability
●Low cost
●Subsurface zener
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