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docs lm224dr: 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
lm224dr-etched.fit.json lm224dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm224dr-etched.glb lm224dr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wit… · Ray
lm224dr-etched.step lm224dr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wit… · Ray
lm224dr.glb Publish 0.1.0 · Ray
lm224dr.kicad_mod Publish 0.1.0 · Ray
lm224dr.kicad_sym Publish 0.1.0 · Ray
lm224dr.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
lm224dr.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 lm224dr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wit… · Ray
README.md lm224dr: specified limits as data (metadata.characteristics, 14 rows from the datasheet) · Ray

LM224DR

UMW · Operational Amplifier · SOP-14

LM224DR from UMW, in a SOP-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 1OUT output Amplifier 1 output.
2 1IN- input Amplifier 1 inverting (negative) input.
3 1IN+ input Amplifier 1 non-inverting (positive) input.
4 VCC power_in Positive supply. Single supply 3 V to 32 V (26 V for LM2902), or +Vs for split supply ±1.5 V to ±16 V. Typical ICC = 0.8 mA.
5 2IN+ input Amplifier 2 non-inverting (positive) input.
6 2IN- input Amplifier 2 inverting (negative) input.
7 2OUT output Amplifier 2 output.
8 3OUT output Amplifier 3 output.
9 3IN- input Amplifier 3 inverting (negative) input.
10 3IN+ input Amplifier 3 non-inverting (positive) input.
11 GND power_in Ground / negative supply. Tie to 0 V for single-supply operation or to -Vs for split supply.
12 4IN+ input Amplifier 4 non-inverting (positive) input.
13 4IN- input Amplifier 4 inverting (negative) input.
14 4OUT output Amplifier 4 output.

Key specifications

Parameter Value
Manufacturer UMW
Package SOP-14
Category Op-amp/Cmp
Pins 14

Ordering variants

Same part, different packaging or reel option.

  • LM224DR
  • LM224DRPWR

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC 32 V LMX24 (LM224) column; over operating free-air temperature range 3
Differential input voltage VID -32 32 V Differential voltages are at IN+, with respect to IN- 3
Input voltage (either input) VI -0.3 32 V Either input; over operating free-air temperature range 3
Operating virtual junction temperature TJ 150 °C Over operating free-air temperature range 3
Storage temperature TSTG -65 150 °C Over operating free-air temperature range 3
Electrostatic discharge, human-body model VESD -500 500 V Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 3
Electrostatic discharge, charged-device model VESD -1000 1000 V Charged-device model (CDM), per JEDEC specification JESD22-C101 3
Supply voltage VCC 3 30 V LMX24 (LM224) column; min shared across LMX24 and LM2902 columns 4
Common-mode voltage VCM 0 V Maximum printed as VCC-2 V 4
Operating free-air temperature TA -20 85 °C LM224 (footnote: –20°C to 85°C for LM224) 4
Junction-to-ambient thermal resistance RθJA 86 °C/W SOP (14 pins) package 4
Slew rate at unity gain SR 0.5 V/μs RL=1MΩ, CL=30pF, VI=±10V (see Figure 7); VCC=±15 V, TA=25°C 6
Unity-gain bandwidth B1 1.2 MHz RL=1MΩ, CL=20pF (see Figure 7); VCC=±15 V, TA=25°C 6
Equivalent input noise voltage Vn 35 nV/√Hz RS=100Ω, VI=0V, f=1kHz (see Figure 8); VCC=±15 V, TA=25°C 6

CAD (KiCad official)

  • Symbol: LM224DR
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOP-14 (KiCad packages3D, STEP)
  • 3D model files: lm224dr-etched.step / lm224dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm224dr.step / lm224dr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lm224dr.step 195 KB You want the bare part, or you mark your own boards.
lm224dr-etched.step 1.8 MB You want the part with LM224DR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 457 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: UMW datasheet (13 pp, sha256 788d49747ca05cb8, retrieved 2026-08-17, tier: lcsc)
  • 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