LM224DT 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	Output 1	output	Output of op-amp 1.
2	Inverting Input 1	input	Inverting input (-) of op-amp 1. Vin -0.3 V to 32 V; input bias 20 nA typ.
3	Non-inverting Input 1	input	Non-inverting input (+) of op-amp 1. Common-mode range includes ground (0 V to VCC-1.5 V).
4	VCC+	power_in	Positive supply. Single supply +3 V to +30 V, or dual supply +1.5 V to +15 V. Absolute max ±16 V or 32 V total.
5	Non-inverting Input 2	input	Non-inverting input (+) of op-amp 2.
6	Inverting Input 2	input	Inverting input (-) of op-amp 2.
7	Output 2	output	Output of op-amp 2. Short-circuit protected; typical short-circuit current ~40 mA.
8	Output 3	output	Output of op-amp 3.
9	Inverting Input 3	input	Inverting input (-) of op-amp 3.
10	Non-inverting Input 3	input	Non-inverting input (+) of op-amp 3.
11	VCC-	power_in	Negative supply / ground. Tie to GND for single-supply operation, or to a negative rail (down to -15 V) for dual-supply operation.
12	Non-inverting Input 4	input	Non-inverting input (+) of op-amp 4.
13	Inverting Input 4	input	Inverting input (-) of op-amp 4.
14	Output 4	output	Output of op-amp 4.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

LM224DTD
LM224DT
LM224DTN
LM224DTP
LM224DTPT
LM224DTQ
LM224DTQT

CAD (KiCad official)

Symbol: LM224DT
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lm224dt.step`	195 KB	You want the bare part, or you mark your own boards.
`lm224dt-etched.step`	1.6 MB	You want the part with `LM224DT` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 426 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 29f770052e84d04e, 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