Symbol

LM339

Quad voltage comparator — open-collector, single or dual supply

⚡ Install this symbol

Paste this into Claude Code (VS Code panel, Adom editor, or terminal) to install:

Search the Adom Wiki for the symbol "LM339" (slug: sym-lm339) at https://wiki-ufypy5dpx93o.adom.cloud/wiki/symbols/sym-lm339. Download the .kicad_sym file from the wiki page's static assets. Add it to my current KiCad project's symbols/ directory and register in sym-lib-table.
Category Comparator
Library Comparator
Symbol LM339
Pins 14
Package DIP-14 / SOIC-14
Schematic Symbol

AI Skill Technical Reference

Edit AI Skill

LM339

Symbol: LM339 Library: Comparator Category: Comparator Pins: 14 Package: DIP-14 / SOIC-14

Description

The LM339 is a quad voltage comparator with open-collector outputs. Operates from single (2-36V) or dual supplies. Response time 1.3us. Four independent comparators for window detectors, level sensing, oscillators, and ADC circuits. DIP-14 / SOIC-14.

KiCad Library Reference

This symbol is from the official KiCad Comparator library. Full identifier: Comparator:LM339

To use in your project:

  1. Open the Symbol Library Manager in KiCad
  2. Search for LM339
  3. Place the symbol in your schematic

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Sub-skills are community-contributed AI skill extensions for this component. They teach AI assistants about specific tools, configurators, or workflows.

Examples:

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  • A community-written design guide for an amplifier circuit
  • An automated test/validation script for a sensor module

How to add one: Click Add Sub-Skill, provide the URL to your skill and a brief description. Submissions are reviewed by the Adom team before going live.

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0 revisions · KiCad Library: Comparator:LM339 · Updated 2026-03-02 17:31:36