LM3999 Datasheet - National Semiconductor

LM3999 Precision Reference

The LM199 series are precision, temperature-stabilized monolithic zeners offering temperature coefficients a factor of ten better than high quality reference zeners. Constructed on a single monolithic chip is a temperature stabilizer circuit and an active reference zener. The active circuitry reduce.

LM3999 Features

* n n n n n n n n n n Guaranteed 0.0001%/˚C temperature coefficient Low dynamic impedance

* 0.5Ω Initial tolerance on breakdown voltage

* 2% Sharp breakdown at 400 µA Wide operating current

* 500 µA to 10 mA Wide supply range for temperature stabilizer Guaranteed low noise Low

LM3999_NationalSemiconductor.pdf