COS4890SR from COSINE, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	SHDN	input	Shutdown control: the device enters shutdown mode when a logic low is applied (VIL max 0.4V, VIH min 1.2V).
2	BYPASS	passive	Bypass capacitor pin which provides half-supply filtering.
3	+IN	input	Positive input of the first amplifier, connected to the half-supply common mode voltage.
4	-IN	input	Negative input of the first amplifier, connected to the load and to the input resistor RIN and feedback resistor RF.
5	VO1	output	Negative output, connected to the load and the feedback resistor RF.
6	VDD	power_in	Analog power supply, 2.5V to 5.5V recommended operating range (6V absolute maximum).
7	GND	power_in	Ground.
8	VO2	output	Positive output, connected to the load.

Key specifications

Parameter	Value
Manufacturer	COSINE
Package	SOP-8
Category	Operational Amplifier/Comparator
Pins	8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Shutdown Current	ISHDN		0.01	1	µA	Vshutdown=0V; VDD=+5V, TA=+25°C	4
Shutdown Voltage Input High	VSDIH	1.2			V	VDD=+5V, TA=+25°C	4
Shutdown Voltage Input Low	VSDIL			0.4	V	VDD=+5V, TA=+25°C	4
Output Offset Voltage	VOS		5	25	mV	VDD=+5V, TA=+25°C, RL=8Ω	4
Quiescent Current, no load	IQ		3.6		mA	VIN=0V, no load	4
Quiescent Current, 8Ω load	IQ		3.8		mA	VIN=0V, 8Ω load	4
Output Power	PO		1.2		W	VDD=5.2V, RL=8Ω, THD=1%, f=1KHz	4
Total Harmonic Distortion Plus Noise	THD+N		0.123		%	VDD=5V, RL=8Ω, Po=1W, f=1KHz	4
Total Harmonic Distortion Plus Noise	THD+N		0.13		%	VDD=3.6V, RL=8Ω, Po=0.5W, f=1KHz	4
Total Harmonic Distortion Plus Noise	THD+N		0.163		%	VDD=2.5V, RL=8Ω, Po=0.2W, f=1KHz	4
Power Supply Rejection Ratio	PSRR		60		dB	f=217Hz	4
Power Supply Rejection Ratio	PSRR		68		dB	f=1KHz	4
Wake up time	TWU		140		ms	CBYPASS=1μF	4
Power Supply Voltage	VDD			6	V	VDD to GND	3
Input Voltage		-0.3			V	-0.3V to VDD+0.3	3
Storage Temperature Range		-65		150	°C		3
Junction Temperature	TJ			150	°C		3
Operating Temperature Range		-40		125	°C		3
ESD Susceptibility, HBM				2000	V	HBM	3
Package Thermal Resistance (SOP8)			155		°C/W	SOP8	3
DC Supply Voltage	VDD	2.5		5.5	V		3
Operating ambient temperature	TA	-40		85	°C		3

CAD (KiCad official)

Symbol: COS4890SR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)
3D model files: cos4890sr-etched.step / cos4890sr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cos4890sr.step / cos4890sr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: COSINE datasheet (8 pp, sha256 3ad1029f5c57375b, retrieved 2026-11-02, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

COS4890SR

Verified COS4890SR

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README