Precision micropower shunt voltage reference
SOT23-3L
SOT323-5L
Maturity status link LM4040
LM4040
Datasheet
Precision micropower shunt voltage reference
Features...
Description
SOT23-3L
SOT323-5L
Maturity status link LM4040
LM4040
Datasheet
Precision micropower shunt voltage reference
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.
DS13886 - Rev 3 - October 2022 For further information contact your local STMicroelectronics sales office.
www.st.com
1
Note:
Pin configuration
Figure 1. Pin configuration SOT23-3L, SOT323-5L (top view)
Cathode 1 K 3 NC
Anode 2 A SOT23-3L
Anode 1 A
5 NC
NC 2
Cathode 3 K
4 NC
S...
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