GS8358-SR from Gainsil, in a SOP-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	Channel A op-amp output. Rail-to-rail output swing; typically within 3mV of supply rails with RL=100kΩ and 8mV with RL=10kΩ. Output source/sink current is approximately 84mA/75mA typical.
2	INA-	input	Channel A inverting input. Rail-to-rail input range (VSS-0.1V to VDD+0.1V). Very low input bias current of 1pA typical.
3	INA+	input	Channel A non-inverting input. Rail-to-rail input range (VSS-0.1V to VDD+0.1V). Very low input bias current of 1pA typical.
4	VSS	power_in	Negative supply / ground pin. For single-supply operation connect to GND; for dual supplies connect to the negative rail (±1.05V to ±2.75V). Bypass with 0.1µF ceramic capacitor to ground for dual-supply operation.
5	INB+	input	Channel B non-inverting input. Rail-to-rail input range (VSS-0.1V to VDD+0.1V). Very low input bias current of 1pA typical.
6	INB-	input	Channel B inverting input. Rail-to-rail input range (VSS-0.1V to VDD+0.1V). Very low input bias current of 1pA typical.
7	OUTB	output	Channel B op-amp output. Rail-to-rail output swing; typically within 3mV of supply rails with RL=100kΩ and 8mV with RL=10kΩ. Output source/sink current is approximately 84mA/75mA typical.
8	VDD	power_in	Positive supply pin. Operating range 2.1V to 5.5V (single-supply) or ±1.05V to ±2.75V (dual-supply). Bypass with a 0.1µF ceramic capacitor close to the pin. Quiescent current is 40µA per amplifier (typ).

Key specifications

Parameter	Value
Manufacturer	Gainsil
Package	SOP-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

GS8358-SR
GS8358-SRMR

CAD (KiCad official)

Symbol: GS8358-SR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`gs8358-sr.step`	122 KB	You want the bare part, or you mark your own boards.
`gs8358-sr-etched.step`	2.6 MB	You want the part with `GS8358-SR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 603 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: Gainsil datasheet (11 pp, sha256 7b7237a774f249b3, 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