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Precision Micropower Shunt Voltage Reference
LM4041
Precision Micropower Shunt Voltage Reference
General DescriptionIdealfor space critical applications, the LM4041 precision
voltage referenceis availableinthe sub-miniature SC70 and
SOT-23 surface-mount packages. The LM4041’s advanced
design eliminatesthe needforan external stabilizing capaci-
tor while ensuring stability with any capacitive load, thus
making the LM4041 easyto use. Further reducing design
effortis the availabilityofa fixed (1.225V) and adjustable
reverse breakdown voltage. The minimum operating current60μAfor the LM4041-1.2 and the LM4041-ADJ. Both
versions havea maximum operating currentof12 mA.
The LM4041 utilizes fuse and zener-zap reverse breakdown reference voltage trim during wafer sortto ensure thatthe
prime parts have an accuracyof better than ±0.1% grade)at 25˚C. Bandgap reference temperature drift cur-
vature correction andlow dynamic impedance ensure stable
reverse breakdown voltage accuracy overa wide rangeof
operating temperatures and currents.
Features Small packages: SOT-23, TO-92, and SC70 No output capacitor required Tolerates capacitive loads Reverse breakdown voltage optionsof 1.225V and
adjustable
Key Specifications (LM4041-1.2) Output voltage tolerance grade, 25˚C) ±0.1%(max) Low output noise
(10Hzto 10kHz) 20μVrms Wide operating current range 60μAto 12mA Industrial temperature range −40˚Cto +85˚C Extended temperature range −40˚Cto +125˚C Low temperature coefficient 100 ppm/˚C (max)
Applications Portable, Battery-Powered Equipment Data Acquisition Systems Instrumentation Process Control Energy Management Automotive Precision Audio Components
Connection Diagrams
SOT-23DS011392-1
*Thispin mustbeleft floatingor connectedtopin2.
DS011392-40
Top View
SeeNS Package Number MF03A
(JEDEC Registration TO-236AB)
SC-70DS011392-46
*Thispin mustbeleft floatingor connectedtopin1.
DS011392-47
Top View
See NS Package Number MAA05AJanuary 2001
LM4041
Precision
Micropower
Shunt
oltage
Reference
