COS2374SR from COSINE, 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	OUT1	output	Amplifier A output. Rail-to-rail output; swings to within millivolts of each supply rail (typ. 1mV at RL=100kΩ, 8mV at 10kΩ, 40mV at 2kΩ). Short-circuit sourcing/sinking ~21/22 mA.
2	-IN1	input	Inverting input of amplifier A. Input voltage range from -Vs -0.3V to +Vs +0.3V; input terminals are diode-clamped to the supply rails (limit external current to <=10 mA beyond the rails).
3	+IN1	input	Non-inverting input of amplifier A. Rail-to-rail common-mode range (-0.1V to +5.6V at Vs=5.5V); same voltage-range limits as -IN1.
4	-Vs	power_in	Negative supply / ground. Tie to ground for single-supply operation (1.8V-5.5V on +Vs) or to a negative rail for dual-supply (±0.9V-±2.75V). If not grounded, bypass with a 0.1µF ceramic close to the pin.
5	+IN2	input	Non-inverting input of amplifier B. Rail-to-rail common-mode range; same voltage-range limits as the other inputs.
6	-IN2	input	Inverting input of amplifier B. Input voltage range from -Vs -0.3V to +Vs +0.3V; diode-clamped to the supply rails.
7	OUT2	output	Amplifier B output. Rail-to-rail output, matching characteristics of OUT1.
8	+Vs	power_in	Positive supply, 1.8V to 5.5V (single supply) or +0.9V to +2.75V (dual). Absolute maximum +Vs to -Vs = 6.0V. Bypass with a 0.1µF ceramic capacitor placed as close as possible to this pin; a 2.2µF tantalum in parallel improves performance.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

COS2374SR
COS2374SRMR

CAD (KiCad official)

Symbol: COS2374SR
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
`cos2374sr.step`	122 KB	You want the bare part, or you mark your own boards.
`cos2374sr-etched.step`	2.2 MB	You want the part with `COS2374SR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 529 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: COSINE datasheet (10 pp, sha256 b65a2d5e48636034, 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