SGM358YS from SGMICRO, 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	Output of amplifier A. Rail-to-rail output stage capable of sourcing up to ~84mA and sinking ~75mA (typ) into a 10Ω load to Vs/2.
2	-INA	input	Inverting input of amplifier A. Rail-to-rail input, common-mode range -0.1V to +5.6V with Vs=5.5V. Input bias current 10pA typical.
3	+INA	input	Non-inverting input of amplifier A. Rail-to-rail input, common-mode range -0.1V to +5.6V with Vs=5.5V. Input bias current 10pA typical.
4	-Vs	power_in	Negative supply rail (typically ground in single-supply operation). Supply voltage range Vs+ to Vs- is 2.1V to 5.5V. Absolute max 6V between +Vs and -Vs.
5	+INB	input	Non-inverting input of amplifier B. Rail-to-rail input, common-mode range -0.1V to +5.6V with Vs=5.5V. Input bias current 10pA typical.
6	-INB	input	Inverting input of amplifier B. Rail-to-rail input, common-mode range -0.1V to +5.6V with Vs=5.5V. Input bias current 10pA typical.
7	OUTB	output	Output of amplifier B. Rail-to-rail output stage capable of sourcing up to ~84mA and sinking ~75mA (typ) into a 10Ω load to Vs/2.
8	+Vs	power_in	Positive supply rail. Operating range 2.1V to 5.5V (Vs+ referred to Vs-). Quiescent current 60µA per amplifier (typ), 86µA max at +85°C.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SGM358YS/TR
SGM358YMS/TR
SGM358YP

CAD (KiCad official)

Symbol: SGM358YS
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sgm358ys.step`	122 KB	You want the bare part, or you mark your own boards.
`sgm358ys-etched.step`	2.2 MB	You want the part with `SGM358YS` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 523 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: SGMICRO datasheet (17 pp, sha256 5d5e301aa8f8f454, 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