Ideal for space-critical applications, the LM4040-N precision voltage reference is
available in the sub-miniature SC70 and SOT-23 surface-mount package. The advanced design of the
LM4040-N eliminates the need for an external stabilizing capacitor while ensuring stability with
any capacitive load, thus making the LM4040-N easy to use. Further reducing design effort is the
availability of several fixed reverse breakdown voltages: 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192
V, and 10 V. The minimum operating current increases from 60 µA for the 2.5-V LM4040-N to 100 µA
for the 10-V LM4040-N. All versions have a maximum operating current of 15 mA.
The LM4040-N uses a fuse and Zener-zap reverse breakdown voltage trim during wafer sort
to ensure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25°C. Bandgap
reference temperature drift curvature correction and low dynamic impedance ensure stable reverse
breakdown voltage accuracy over a wide range of operating temperatures and currents.
Also available is the LM4041-N with two reverse breakdown voltage versions: adjustable
and 1.2 V. See the LM4041-N data sheet (SNOS641).
