100-ppm/°C precision micropower shunt voltage reference

Designed for space-critical applications, the

LM4040-N precision voltage reference is available in small SC70 and SOT-23

surface-mount package. The advanced design of the LM4040-N eliminates the need for

an external stabilizing capacitor while maintaining 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: 2.048V, 2.5V, 3V, 4.096V,

5V, 8.192V, and 10V. The minimum operating current increases from 60µA for the 2.5V

LM4040-N to 100µA for the 10V LM4040-N. All versions have a maximum operating

current of 15mA.

The LM4040-N uses a fuse and Zener-zap reverse

breakdown voltage trim during wafer sort to make sure 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 provide 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 1.2V. See the LM4041-N data sheet (SNOS641).