LM224 from HXY MOSFET, 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	OUT1	output	Output of op-amp channel 1. Push-pull output with internal short-circuit protection (limits output current when R sense in the output stage forces T12 into saturation).
2	IN-(1)	input	Inverting input of op-amp channel 1. Input bias current ~45 nA typ (250 nA max); input common-mode range 0 V to Vcc−1.5 V.
3	IN+(1)	input	Non-inverting input of op-amp channel 1. Datasheet table labels this pin 'IN+(2)' which is a documented typo - the standard LM224 pinout (matched by internal cross-references and the industry-standard LM324/LM224 family) places IN+(1) at pin 3.
4	VCC	power_in	Positive supply rail. Single-supply range 3-20 V; dual-supply range ±1.5 V to ±10 V. Absolute maximum 24 V. Quiescent current 0.6 mA typ at Vcc=5 V (1.5 mA typ at Vcc=20 V).
5	IN+(2)	input	Non-inverting input of op-amp channel 2. Common-mode range includes ground (0 V to Vcc−1.5 V).
6	IN-(2)	input	Inverting input of op-amp channel 2. Input offset voltage ±2 mV typ (±7 mV max); input offset current ±5 nA typ.
7	OUT2	output	Output of op-amp channel 2. Output voltage swing 0 V to Vcc−1.5 V; short-circuit protected.
8	OUT3	output	Output of op-amp channel 3. Large-signal voltage gain 100 V/mV typ (Vcc=15 V, RL≥2 kΩ).
9	IN-(3)	input	Inverting input of op-amp channel 3. Channel-to-channel separation Cs = 120 dB typ (f=1-20 kHz).
10	IN+(3)	input	Non-inverting input of op-amp channel 3.
11	GND	power_in	Negative supply / ground return. Connect to 0 V for single-supply operation, or to Vee (negative rail) for dual-supply operation.
12	IN+(4)	input	Non-inverting input of op-amp channel 4.
13	IN-(4)	input	Inverting input of op-amp channel 4.
14	OUT4	output	Output of op-amp channel 4. Output source current 40 mA typ (Vin+=1V, Vin-=0V); sink current 20 mA typ.

Key specifications

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

CAD (KiCad official)

Symbol: LM224
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOP-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lm224.step`	195 KB	You want the bare part, or you mark your own boards.
`lm224-etched.step`	1.4 MB	You want the part with `LM224` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 375 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: HXY MOSFET datasheet (8 pp, sha256 36652c9e6e24912f, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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