The LM4030 is a precision shunt voltage reference with an exceptionally high initial accuracy of 0.05% and temperature stability of 10 ppm/°C
The LM4030 shunt voltage reference provides exceptionally high initial accuracy (0.05% for grade A) and low temperature coefficient (10 ppm/°C). It is available in fixed output options of 2.5 V and 4.096 V and is housed in a tiny SOT‑23‑5 package, yet it maintains excellent thermal hysteresis (75 ppm) and long‑term stability (40 ppm).
The device can operate without an external capacitor, supports up to 30 mA continuous shunt current, and tolerates transient currents up to 50 mA. Electrical characteristics, absolute maximum ratings, and typical performance curves are detailed for both voltage options, along with ordering information and pin descriptions.
| Output voltage options | 2.5 V, 4.096 V |
|---|---|
| Initial accuracy (grade A) | 0.05 % |
| Temperature coefficient (grade A) | 10 ppm/°C |
| Thermal hysteresis | 75 ppm |
| Maximum continuous shunt current | 30 mA |
| Package | SOT‑23‑5 |
| Minimum operating current | 120 pA |
The LM4030 is offered with fixed output voltages of 2.5 V or 4.096 V.
It can continuously shunt up to 30 mA.
Grade A devices have a temperature coefficient of 10 ppm/°C.
Grade A devices provide an initial accuracy of 0.05 %.