component

LM239ADT

Public Made by Adom

by adom

STMicroelectronics Comparators, SOIC-14. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentop-amp-cmplm239adt
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs lm239adt: 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
lm239adt-etched.fit.json lm239adt: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm239adt-etched.glb lm239adt: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm239adt-etched.step lm239adt: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm239adt.glb Publish 0.1.0 · Ray
lm239adt.kicad_mod Publish 0.1.0 · Ray
lm239adt.kicad_sym Publish 0.1.0 · Ray
lm239adt.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
lm239adt.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 lm239adt: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md lm239adt: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

LM239ADT

STMicroelectronics · Comparators · SOIC-14

LM239ADT from STMicroelectronics, in a SOIC-14. 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 Output2 output Open-collector output of comparator 2. Requires an external pull-up resistor to a positive rail (typ. ≤ Vcc+). Low output saturation voltage 250 mV typ at Isink = 4 mA; sink up to ~20 mA short-circuit to Vcc+.
2 Output1 output Open-collector output of comparator 1. Requires an external pull-up resistor. Same drive characteristics as Output2.
3 VCC+ power_in Positive supply rail. Single-supply operation 2 to 36 V, or +Vcc in a split ±1 to ±18 V supply. Typ quiescent current 1.1 mA independent of Vcc.
4 Inverting input 1 input Inverting (-) input of comparator 1. Common-mode range includes ground: 0 to (Vcc+ − 1.5) V. Input bias current 25 nA typ; input offset ±1 mV typ (±2 mV max for A grade).
5 Non-inverting input 1 input Non-inverting (+) input of comparator 1. Common-mode range 0 to (Vcc+ − 1.5) V; differential input voltage rating ±36 V.
6 Inverting input 2 input Inverting (-) input of comparator 2. Same electrical characteristics as input 1.
7 Non-inverting input 2 input Non-inverting (+) input of comparator 2.
8 Inverting input 3 input Inverting (-) input of comparator 3.
9 Non-inverting input 3 input Non-inverting (+) input of comparator 3.
10 Inverting input 4 input Inverting (-) input of comparator 4.
11 Non-inverting input 4 input Non-inverting (+) input of comparator 4.
12 VCC- power_in Negative supply / ground rail. Tie to GND in single-supply operation, or to −Vcc in a split ±1 to ±18 V supply.
13 Output4 output Open-collector output of comparator 4. Requires external pull-up.
14 Output3 output Open-collector output of comparator 3. Requires external pull-up.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOIC-14
Category Op-amp/Cmp
Pins 14

Ordering variants

Same part, different packaging or reel option.

  • LM239ADT
  • LM239ADTD
  • LM239ADTPT
  • LM239ADTQT

CAD (KiCad official)

  • Symbol: LM239ADT
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: lm239adt-etched.step / lm239adt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm239adt.step / lm239adt.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lm239adt.step 195 KB You want the bare part, or you mark your own boards.
lm239adt-etched.step 1.9 MB You want the part with LM239ADT already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 490 faces against 237 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: STMicroelectronics datasheet (19 pp, sha256 5adc47258717f516, 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