Fixed & adjustable, precision micropower shunt voltage reference

Designed for space critical

applications, the LM4051-N precision voltage reference is available in the

sub-miniature (3mm x 1.30mm) SOT-23 surface mount package. The LM4051-N’s advanced

design eliminates the need for an external stabilizing capacitor while maintaining

stability with any capacitive load, thus making the LM4051-N easy to use. Further

reducing design effort is the availability of a fixed (1.225V) and adjustable

reverse breakdown voltage. The minimum operating current is 60µA for the LM4051-1.2

and the LM4051-ADJ. Both versions have a maximum operating current of 12mA.

The LM4051-N comes in three grades (A,

B, and C). The best grade devices (A) have an initial accuracy of 0.1%, while the

B-grade have 0.2% and the C-grade 0.5%, all with a tempco of 50 ppm/ ̊C designed for

−40°C to 125̊°C.

The LM4051-N utilizes fuse and

zener-zap trim of reference voltage during wafer sort to ensure that the prime parts

have an accuracy of better than ± 0.1% (A grade) at 25°C.