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High-speed dual voltage comparator

LM319 Internal Circuitry

Explore the internal circuitry and functional stages of LM319.

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Inside LM319

Two comparators with separate output-transistor returns.

LM319 two differential input paths driving open collectors 12 and 7, output returns 3 and 8, analog rails 11 and 6.
Functional architecture inside the package; not a transistor-level netlist.

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Select a stage to see its role and connections

Sense

Each differential input pair controls one independent comparison.

Switch

A gain path switches the collector transistor on or off.

Return current

Each output transistor has its own return pin; both are grounded in this example.

Component view