Library

LM2903

Dual voltage comparator, open-collector output, DIP-8

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

Search the Adom Wiki for the library component "LM2903" (slug: lm2903) at https://wiki-ufypy5dpx93o.adom.cloud/wiki/libraries/lm2903. Pull down the KiCad symbol, footprint, and 3D model files from the wiki page's assets. Install them into my current KiCad project and register in sym-lib-table and fp-lib-table. If the page has a datasheet URL, save that too.
Manufacturer Texas Instruments
Package DIP-8
Pins 8 pins (Comparator A, Comparator B, Power)
LCSC C7951
Supply Voltage 2V-36V (single) or ±1V-±18V
Response Time 1.3µs
Output Open collector (sink 16mA)
Channels 2

Library View

Interactive symbol, footprint, and 3D model — hover pins for cross-highlighting.

SymbolGenerated Generated from pin data (KiCad symbol Comparator/LM2903 is multi-unit)
FootprintKiCad KiCad standard library: Package_DIP/DIP-8_W7.62mm
3DGenerated Generated pad visualization (Babylon.js)

Breakout Board

Auto-generated breakout molecule for LM2903 — all pins brought to 2mm-pitch headers with 4 corner machine pins on 8mm grid.

Pricing & Availability

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DigiKey Not available
JLCPCB Not available

Specifications

Supply Voltage2V-36V (single) or ±1V-±18V
Response Time1.3µs
OutputOpen collector (sink 16mA)
Channels2
PackageDIP-8 / SOIC-8

Pin Configuration

Comparator AComparator BPower
PinNameGroupFunction
Comparator A — Channel A
11OUTComparator AComparator 1 output (open collector)
21IN-Comparator AComparator 1 inverting input
31IN+Comparator AComparator 1 non-inverting input
Comparator B — Channel B
52IN+Comparator BComparator 2 non-inverting input
62IN-Comparator BComparator 2 inverting input
72OUTComparator BComparator 2 output (open collector)
Power — Supply and ground
4GNDPowerGround
8VCCPowerSupply voltage (2V-36V)

AI Skill Technical Reference

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LM2903 — Dual voltage comparator, open-collector output, DIP-8

Manufacturer: Texas Instruments Package: DIP-8 LCSC: C7951

Description

The LM2903 is a dual voltage comparator from TI with open-collector outputs. Operates from single 2V-36V or dual ±1V-18V supplies. Open-collector outputs can sink up to 16mA for driving LEDs or logic.

Electrical Specifications

  • Supply Voltage: 2V-36V (single) or ±1V-±18V
  • Response Time: 1.3µs
  • Output: Open collector (sink 16mA)
  • Channels: 2
  • Package: DIP-8 / SOIC-8

Pin Configuration

Package: DIP-8

  • Pin 1: 1OUT — Comparator 1 output (open collector)
  • Pin 2: 1IN- — Comparator 1 inverting input
  • Pin 3: 1IN+ — Comparator 1 non-inverting input
  • Pin 4: GND — Ground
  • Pin 5: 2IN+ — Comparator 2 non-inverting input
  • Pin 6: 2IN- — Comparator 2 inverting input
  • Pin 7: 2OUT — Comparator 2 output (open collector)
  • Pin 8: VCC — Supply voltage (2V-36V)

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0 revisions · Updated 2026-03-02 17:31:36