component

LM2903DR2G

Public Made by Adom

by adom

onsemi Comparators, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentop-amp-cmplm2903dr2g
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs lm2903dr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
lm2903dr2g-etched.fit.json lm2903dr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm2903dr2g-etched.glb lm2903dr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm2903dr2g-etched.step lm2903dr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm2903dr2g.glb Publish 0.1.0 · Ray
lm2903dr2g.kicad_mod Publish 0.1.0 · Ray
lm2903dr2g.kicad_sym Publish 0.1.0 · Ray
lm2903dr2g.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
lm2903dr2g.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json lm2903dr2g: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md lm2903dr2g: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

LM2903DR2G

onsemi · Comparators · SOIC-8

LM2903DR2G from onsemi, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUTA output Open-collector output of comparator A. Requires an external pull-up resistor to VCC (typ. 1 kΩ-100 kΩ). Sinks up to 16 mA when active low.
2 OUTB output Open-collector output of comparator B. Requires an external pull-up resistor to VCC. Sinks up to 16 mA when active low.
3 VCC power_in Positive supply rail. Single-supply operation 2 V to 36 V, or split-supply ±1 V to ±18 V.
4 INB- input Inverting input of comparator B. Common-mode range extends from V- (GND) to VCC − 1.5 V.
5 INB+ input Non-inverting input of comparator B. Common-mode range extends from V- (GND) to VCC − 1.5 V.
6 INA- input Inverting input of comparator A. Common-mode range extends from V- (GND) to VCC − 1.5 V.
7 INA+ input Non-inverting input of comparator A. Common-mode range extends from V- (GND) to VCC − 1.5 V.
8 GND power_in Ground / negative supply rail (V-). Tied to 0 V in single-supply operation.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category Op-amp/Cmp
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • LM2903DR2G
  • LM2903DR2GDG

CAD (KiCad official)

  • Symbol: LM2903DR2G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: lm2903dr2g-etched.step / lm2903dr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2903dr2g.step / lm2903dr2g.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lm2903dr2g.step 122 KB You want the bare part, or you mark your own boards.
lm2903dr2g-etched.step 2.3 MB You want the part with LM2903DR2G already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 564 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (12 pp, sha256 f373bad3f48ee0ff, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF