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A-grade 2.5 V shunt reference

LM4040 Internal Circuitry

Explore the internal circuitry and functional stages of LM4040.

Package view

Inside LM4040

A compact feedback-controlled current path between cathode and anode.

LM4040 functional reference,feedback amplifier and shunt element inside package.
Conceptual functional diagram; not an exact transistor netlist or die floorplan.

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Select a stage to see its role and connections

Sense

Monitor cathode voltage relative to the anode.

Compare

Compare feedback with the internal trimmed reference.

Shunt

Vary sink current through the shunt element to hold the reference node.

Component view