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Ten-step linear LED display driver

LM3914 Internal Circuitry

Explore the internal circuitry and functional stages of LM3914.

Package view

Inside LM3914

Analog comparison and regulated LED sinks.

LM3914 functional cutaway: reference, ten-tap ladder, input buffer, comparator bank, dot bar logic and ten current sinks.
Functional architecture, not transistor-level artwork.

Explore the circuit

Select a stage to see its role and connections

Reference

Set scale and current.

Compare

Ten linear thresholds.

Display

Dot or bar drives regulated cathode sinks.

Component view