GS8632-MR from Gainsil, in a MSOP-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 output swing to within ~0.1V of VDD/VSS with a 600Ω load (0.015V with 10kΩ). Sources/sinks up to 53mA typical (49mA min at +25°C).
2	INA-	input	Amplifier A inverting input. Rail-to-rail common-mode range (VSS-0.1V to VDD+0.1V). Very high impedance, 1pA typical input bias current.
3	INA+	input	Amplifier A non-inverting input. Rail-to-rail common-mode range (VSS-0.1V to VDD+0.1V). 1pA typical input bias current.
4	VSS	power_in	Negative supply / ground. Single-supply operation ties this to GND; dual-supply operation accepts down to -2.75V. Absolute max VDD-to-VSS = 7.5V.
5	INB+	input	Amplifier B non-inverting input. Rail-to-rail common-mode range (VSS-0.1V to VDD+0.1V). 1pA typical input bias current.
6	INB-	input	Amplifier B inverting input. Rail-to-rail common-mode range (VSS-0.1V to VDD+0.1V). 1pA typical input bias current.
7	OUTB	output	Amplifier B output. Rail-to-rail output swing to within ~0.1V of VDD/VSS with a 600Ω load. Sources/sinks up to 53mA typical.
8	VDD	power_in	Positive supply. Operating range 2.1V to 5.5V (single supply) or up to +2.75V (dual supply). Bypass with a 0.1µF ceramic capacitor placed close to the pin. Quiescent current 470µA per amplifier typical.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

GS8632-MR
GS8632-MRSR

CAD (KiCad official)

Symbol: GS8632-MR
Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
3D model: MSOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`gs8632-mr.step`	123 KB	You want the bare part, or you mark your own boards.
`gs8632-mr-etched.step`	2.4 MB	You want the part with `GS8632-MR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 556 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 (19 pp, sha256 c17e6fe6cae0310b, 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