Features

•

Fixed 2.048 V, 2.5 V, 3.0 V, 4.096 V and 5.0 V output voltages

•

Ultra low operating current: 10 µA at 25 °C

•

High precision @ 25 °C: +/- 0.1% (LM4040A), +/- 0.2% (LM4040B), +/- 0.5 %

(LM4040C), +/- 1% (LM4040D)

•

Very low LF noise: typ.10 µ Vp-p

•

Stable when used with capacitive loads

•

Industrial (-40 to +125 °C) temperature range

•

70 ppm/°C max. temperature coefficient

•

Available in SOT23-3L and SOT323-5L packages

Applications

•

Portable, battery-operated equipment

•

Data acquisition systems

•

Instrumentation

Description

The LM4040 is a low power and high accuracy shunt voltage reference providing

a stable output voltage over the industrial temperature range (-40 to +125 °C), with

a maximum temperature coefficient of 70 ppm/°C. It is available in 0.1%, 0.2%,

0.5% and 1% initial accuracy versions. The SOT323-5L and SOT23-3L packages

can be designed in applications where space saving is a critical issue. The very low

operating current is a key advantage for power restricted designs. The LM4040 is

very stable and can be used in a broad range of application conditions.

SOT23-3L

SOT323-5L

Maturity status link

LM4040

Precision micropower shunt voltage reference

LM4040

Datasheet

DS13886 - Rev 2 - May 2022

For further information contact your local STMicroelectronics sales office.

www.st.com