COS6042SR from COSINE, 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	OUT1	output	Output of amplifier A (channel 1). Output voltage swings to within ~10mV of each supply rail into RL=50kΩ. Short-circuit current ±20mA typical.
2	-IN1	input	Inverting input of amplifier A. Voltage range from -Vs -0.3V to +Vs +0.3V. Input bias current 1pA typical (10pA max).
3	+IN1	input	Non-inverting input of amplifier A. Rail-to-rail input, common-mode range -0.1V to +Vs +0.1V (VS = 5.5V). Same voltage range as -IN1.
4	-Vs	power_in	Negative power supply or ground. If not connected to ground, bypass with a 0.1μF capacitor as close to the part as possible. Total supply +Vs to -Vs range 1.4V to 5.5V.
5	+IN2	input	Non-inverting input of amplifier B. Rail-to-rail input, common-mode range -0.1V to +Vs +0.1V.
6	-IN2	input	Inverting input of amplifier B. Voltage range from -Vs -0.3V to +Vs +0.3V. Input bias current 1pA typical.
7	OUT2	output	Output of amplifier B (channel 2). Rail-to-rail output, swings within 10mV of each supply rail. Short-circuit current ±20mA typical.
8	+Vs	power_in	Positive power supply, 1.4V to 5.5V range (6.0V absolute max +Vs to -Vs). Bypass with a 0.1μF ceramic capacitor close to the pin; a 2.2μF tantalum can be added for better performance. Quiescent current 500nA per amplifier.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

COS6042SR
COS6042SRMR

CAD (KiCad official)

Symbol: COS6042SR
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
`cos6042sr.step`	122 KB	You want the bare part, or you mark your own boards.
`cos6042sr-etched.step`	2.4 MB	You want the part with `COS6042SR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 560 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 c1ab67cd8e47b113, 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