GS8332-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	Amplifier A output. Rail-to-rail swing (typ. within 5 mV of supply rails with RL=100 kOhm, 20 mV with RL=10 kOhm). Short-circuit current limit ~20 mA typ.
2	INA-	input	Amplifier A inverting input. Rail-to-rail common-mode range (VSS-0.1 V to VDD+0.1 V). Input bias current typ. 20 pA @ 25 C.
3	INA+	input	Amplifier A non-inverting input. Rail-to-rail common-mode range (VSS-0.1 V to VDD+0.1 V). Input bias current typ. 20 pA @ 25 C.
4	VSS	power_in	Negative supply / ground. For single-supply operation tie to GND; for dual-supply operation typ. -0.9 V to -2.75 V. Decouple to VDD with 0.1 uF ceramic close to the pin.
5	INB+	input	Amplifier B non-inverting input. Rail-to-rail common-mode range (VSS-0.1 V to VDD+0.1 V). Input bias current typ. 20 pA @ 25 C.
6	INB-	input	Amplifier B inverting input. Rail-to-rail common-mode range (VSS-0.1 V to VDD+0.1 V). Input bias current typ. 20 pA @ 25 C.
7	OUTB	output	Amplifier B output. Rail-to-rail swing (typ. within 5 mV of supply rails with RL=100 kOhm, 20 mV with RL=10 kOhm). Short-circuit current limit ~20 mA typ.
8	VDD	power_in	Positive supply. 1.8 V to 5.5 V single-supply operating range (absolute max 7.5 V VDD-VSS). Bypass to VSS with a 0.1 uF ceramic close to the pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

GS8332-SR
GS8332-SRMR
GS8332-MR

CAD (KiCad official)

Symbol: GS8332-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
`gs8332-sr.step`	122 KB	You want the bare part, or you mark your own boards.
`gs8332-sr-etched.step`	2.5 MB	You want the part with `GS8332-SR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 593 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 (15 pp, sha256 118070d5dc462cce, 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